Add 21/25 and 28/36
21/25 + 28/36 is 364/225.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 36 is 900
Next, find the equivalent fraction of both fractional numbers with denominator 900 - For the 1st fraction, since 25 × 36 = 900,
21/25 = 21 × 36/25 × 36 = 756/900 - Likewise, for the 2nd fraction, since 36 × 25 = 900,
28/36 = 28 × 25/36 × 25 = 700/900 - Add the two like fractions:
756/900 + 700/900 = 756 + 700/900 = 1456/900 - 1456/900 simplified gives 364/225
- So, 21/25 + 28/36 = 364/225
In mixed form: 1139/225
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