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