Add 70/18 and 20/42
1st number: 3 16/18, 2nd number: 20/42
70/18 + 20/42 is 275/63.
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,
70/18 = 70 × 7/18 × 7 = 490/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
20/42 = 20 × 3/42 × 3 = 60/126 - Add the two like fractions:
490/126 + 60/126 = 490 + 60/126 = 550/126 - 550/126 simplified gives 275/63
- So, 70/18 + 20/42 = 275/63
In mixed form: 423/63
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