Add 21/48 and 20/36
21/48 + 20/36 is 143/144.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 36 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 48 × 3 = 144,
21/48 = 21 × 3/48 × 3 = 63/144 - Likewise, for the 2nd fraction, since 36 × 4 = 144,
20/36 = 20 × 4/36 × 4 = 80/144 - Add the two like fractions:
63/144 + 80/144 = 63 + 80/144 = 143/144 - So, 21/48 + 20/36 = 143/144
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