Add 4/25 and 21/80
4/25 + 21/80 is 169/400.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 80 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 25 × 16 = 400,
4/25 = 4 × 16/25 × 16 = 64/400 - Likewise, for the 2nd fraction, since 80 × 5 = 400,
21/80 = 21 × 5/80 × 5 = 105/400 - Add the two like fractions:
64/400 + 105/400 = 64 + 105/400 = 169/400 - So, 4/25 + 21/80 = 169/400
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