Add 72/18 and 4/42
1st number: 4 0/18, 2nd number: 4/42
72/18 + 4/42 is 86/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
72/18 = 72 × 7/18 × 7 = 504/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
4/42 = 4 × 3/42 × 3 = 12/126 - Add the two like fractions:
504/126 + 12/126 = 504 + 12/126 = 516/126 - 516/126 simplified gives 86/21
- So, 72/18 + 4/42 = 86/21
In mixed form: 42/21
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