Add 21/25 and 15/80
21/25 + 15/80 is 411/400.
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,
21/25 = 21 × 16/25 × 16 = 336/400 - Likewise, for the 2nd fraction, since 80 × 5 = 400,
15/80 = 15 × 5/80 × 5 = 75/400 - Add the two like fractions:
336/400 + 75/400 = 336 + 75/400 = 411/400 - So, 21/25 + 15/80 = 411/400
In mixed form: 111/400
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