Add 15/21 and 9/16
15/21 + 9/16 is 143/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
15/21 = 15 × 16/21 × 16 = 240/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
9/16 = 9 × 21/16 × 21 = 189/336 - Add the two like fractions:
240/336 + 189/336 = 240 + 189/336 = 429/336 - 429/336 simplified gives 143/112
- So, 15/21 + 9/16 = 143/112
In mixed form: 131/112
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