Add 21/25 and 15/70
21/25 + 15/70 is 369/350.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 70 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 25 × 14 = 350,
21/25 = 21 × 14/25 × 14 = 294/350 - Likewise, for the 2nd fraction, since 70 × 5 = 350,
15/70 = 15 × 5/70 × 5 = 75/350 - Add the two like fractions:
294/350 + 75/350 = 294 + 75/350 = 369/350 - So, 21/25 + 15/70 = 369/350
In mixed form: 119/350
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