Add 20/25 and 21/35
20/25 + 21/35 is 7/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 35 is 175
Next, find the equivalent fraction of both fractional numbers with denominator 175 - For the 1st fraction, since 25 × 7 = 175,
20/25 = 20 × 7/25 × 7 = 140/175 - Likewise, for the 2nd fraction, since 35 × 5 = 175,
21/35 = 21 × 5/35 × 5 = 105/175 - Add the two like fractions:
140/175 + 105/175 = 140 + 105/175 = 245/175 - 245/175 simplified gives 7/5
- So, 20/25 + 21/35 = 7/5
In mixed form: 12/5
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