Add 9/16 and 21/25
9/16 + 21/25 is 561/400.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 25 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 16 × 25 = 400,
9/16 = 9 × 25/16 × 25 = 225/400 - Likewise, for the 2nd fraction, since 25 × 16 = 400,
21/25 = 21 × 16/25 × 16 = 336/400 - Add the two like fractions:
225/400 + 336/400 = 225 + 336/400 = 561/400 - So, 9/16 + 21/25 = 561/400
In mixed form: 1161/400
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