4.4 Add and subtract fractions with common denominators  (Page 2/2)

$\frac{2}{5}+\frac{1}{5}$

$\frac{3}{10}+\frac{4}{10}$

$\frac{1}{6}+\frac{3}{6}$

$\frac{3}{8}+\frac{3}{8}$

$\frac{4}{9}+\frac{1}{9}$

$\frac{2}{9}+\frac{5}{9}$

$\frac{6}{13}+\frac{7}{13}$

$\frac{9}{15}+\frac{7}{15}$

$\frac{x}{4}+\frac{3}{4}$

$\frac{y}{3}+\frac{2}{3}$

$\frac{7}{p}+\frac{9}{p}$

$\frac{8}{q}+\frac{6}{q}$

$\frac{8b}{9}+\frac{3b}{9}$

$\frac{5a}{7}+\frac{4a}{7}$

$\frac{\mathrm{-12}y}{8}+\frac{3y}{8}$

$\frac{\mathrm{-11}x}{5}+\frac{7x}{5}$

$-\frac{1}{8}+\left(-\frac{3}{8}\right)$

$-\frac{1}{8}+\left(-\frac{5}{8}\right)$

$-\frac{3}{16}+\left(-\frac{7}{16}\right)$

$-\frac{5}{16}+\left(-\frac{9}{16}\right)$

$-\frac{8}{17}+\frac{15}{17}$

$-\frac{9}{19}+\frac{17}{19}$

$\frac{6}{13}+\left(-\frac{10}{13}\right)+\left(-\frac{12}{13}\right)$

$\frac{5}{12}+\left(-\frac{7}{12}\right)+\left(-\frac{11}{12}\right)$

$\frac{5}{8}-\frac{2}{8}$

$\frac{5}{6}-\frac{2}{6}$

$\frac{4}{5}-\frac{1}{5}$

$\frac{4}{5}-\frac{3}{5}$

$\frac{11}{15}-\frac{7}{15}$

$\frac{9}{13}-\frac{4}{13}$

$\frac{11}{12}-\frac{5}{12}$

$\frac{7}{12}-\frac{5}{12}$

$\frac{4}{21}-\frac{19}{21}$

$-\frac{8}{9}-\frac{16}{9}$

$\frac{y}{17}-\frac{9}{17}$

$\frac{x}{19}-\frac{8}{19}$

$\frac{5y}{8}-\frac{7}{8}$

$\frac{11z}{13}-\frac{8}{13}$

$-\frac{8}{d}-\frac{3}{d}$

$-\frac{7}{c}-\frac{7}{c}$

$-\frac{23}{u}-\frac{15}{u}$

$-\frac{29}{v}-\frac{26}{v}$

$\frac{6c}{7}-\frac{5c}{7}$

$\frac{12d}{11}-\frac{9d}{11}$

$\frac{\mathrm{-4}r}{13}-\frac{5r}{13}$

$\frac{\mathrm{-7}s}{3}-\frac{7s}{3}$

$-\frac{3}{5}-\left(-\frac{4}{5}\right)$

$-\frac{3}{7}-\left(-\frac{5}{7}\right)$

$-\frac{7}{9}-\left(-\frac{5}{9}\right)$

$-\frac{8}{11}-\left(-\frac{5}{11}\right)$

$-\frac{5}{18}·\frac{9}{10}$

$-\frac{3}{14}·\frac{7}{12}$

$\frac{n}{5}-\frac{4}{5}$

$\frac{6}{11}-\frac{s}{11}$

$-\frac{7}{24}+\frac{2}{24}$

$-\frac{5}{18}+\frac{1}{18}$

$\frac{8}{15}÷\frac{12}{5}$

$\frac{7}{12}÷\frac{9}{28}$

Trail Mix Jacob is mixing together nuts and raisins to make trail mix. He has $\frac{6}{10}$ of a pound of nuts and $\frac{3}{10}$ of a pound of raisins. How much trail mix can he make?

Baking Janet needs $\frac{5}{8}$ of a cup of flour for a recipe she is making. She only has $\frac{3}{8}$ of a cup of flour and will ask to borrow the rest from her next-door neighbor. How much flour does she have to borrow?

Greg dropped his case of drill bits and three of the bits fell out. The case has slots for the drill bits, and the slots are arranged in order from smallest to largest. Greg needs to put the bits that fell out back in the case in the empty slots. Where do the three bits go? Explain how you know.

After a party, Lupe has $\frac{5}{12}$ of a cheese pizza, $\frac{4}{12}$ of a pepperoni pizza, and $\frac{4}{12}$ of a veggie pizza left. Will all the slices fit into $1$ pizza box? Explain your reasoning.