Add 72/35 and 20/42
1st number: 2 2/35, 2nd number: 20/42
72/35 + 20/42 is 38/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 35 × 6 = 210,
72/35 = 72 × 6/35 × 6 = 432/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
20/42 = 20 × 5/42 × 5 = 100/210 - Add the two like fractions:
432/210 + 100/210 = 432 + 100/210 = 532/210 - 532/210 simplified gives 38/15
- So, 72/35 + 20/42 = 38/15
In mixed form: 28/15
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