Add 15/25 and 21/70
15/25 + 21/70 is 9/10.
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,
15/25 = 15 × 14/25 × 14 = 210/350 - Likewise, for the 2nd fraction, since 70 × 5 = 350,
21/70 = 21 × 5/70 × 5 = 105/350 - Add the two like fractions:
210/350 + 105/350 = 210 + 105/350 = 315/350 - 315/350 simplified gives 9/10
- So, 15/25 + 21/70 = 9/10
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