Add 7/72 and 21/48
7/72 + 21/48 is 77/144.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 48 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 72 × 2 = 144,
7/72 = 7 × 2/72 × 2 = 14/144 - Likewise, for the 2nd fraction, since 48 × 3 = 144,
21/48 = 21 × 3/48 × 3 = 63/144 - Add the two like fractions:
14/144 + 63/144 = 14 + 63/144 = 77/144 - So, 7/72 + 21/48 = 77/144
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