Add 21/36 and 21/16
1st number: 21/36, 2nd number: 1 5/16
21/36 + 21/16 is 91/48.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 36 × 4 = 144,
21/36 = 21 × 4/36 × 4 = 84/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
21/16 = 21 × 9/16 × 9 = 189/144 - Add the two like fractions:
84/144 + 189/144 = 84 + 189/144 = 273/144 - 273/144 simplified gives 91/48
- So, 21/36 + 21/16 = 91/48
In mixed form: 143/48
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