Add 20/35 and 42/49
20/35 + 42/49 is 10/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 49 is 245
Next, find the equivalent fraction of both fractional numbers with denominator 245 - For the 1st fraction, since 35 × 7 = 245,
20/35 = 20 × 7/35 × 7 = 140/245 - Likewise, for the 2nd fraction, since 49 × 5 = 245,
42/49 = 42 × 5/49 × 5 = 210/245 - Add the two like fractions:
140/245 + 210/245 = 140 + 210/245 = 350/245 - 350/245 simplified gives 10/7
- So, 20/35 + 42/49 = 10/7
In mixed form: 13/7
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