Add 21/72 and 4/16
21/72 + 4/16 is 13/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 72 × 2 = 144,
21/72 = 21 × 2/72 × 2 = 42/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
4/16 = 4 × 9/16 × 9 = 36/144 - Add the two like fractions:
42/144 + 36/144 = 42 + 36/144 = 78/144 - 78/144 simplified gives 13/24
- So, 21/72 + 4/16 = 13/24
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