Add 20/42 and 25/35
20/42 + 25/35 is 25/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 35 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
20/42 = 20 × 5/42 × 5 = 100/210 - Likewise, for the 2nd fraction, since 35 × 6 = 210,
25/35 = 25 × 6/35 × 6 = 150/210 - Add the two like fractions:
100/210 + 150/210 = 100 + 150/210 = 250/210 - 250/210 simplified gives 25/21
- So, 20/42 + 25/35 = 25/21
In mixed form: 14/21
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