Add 72/42 and 42/70
1st number: 1 30/42, 2nd number: 42/70
72/42 + 42/70 is 81/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
72/42 = 72 × 5/42 × 5 = 360/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
42/70 = 42 × 3/70 × 3 = 126/210 - Add the two like fractions:
360/210 + 126/210 = 360 + 126/210 = 486/210 - 486/210 simplified gives 81/35
- So, 72/42 + 42/70 = 81/35
In mixed form: 211/35
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