Add 7/18 and 40/63
7/18 + 40/63 is 43/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
7/18 = 7 × 7/18 × 7 = 49/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
40/63 = 40 × 2/63 × 2 = 80/126 - Add the two like fractions:
49/126 + 80/126 = 49 + 80/126 = 129/126 - 129/126 simplified gives 43/42
- So, 7/18 + 40/63 = 43/42
In mixed form: 11/42
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