Add 21/25 and 20/70
21/25 + 20/70 is 197/175.
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,
20/70 = 20 × 5/70 × 5 = 100/350 - Add the two like fractions:
294/350 + 100/350 = 294 + 100/350 = 394/350 - 394/350 simplified gives 197/175
- So, 21/25 + 20/70 = 197/175
In mixed form: 122/175
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