Add 20/63 and 5/18
20/63 + 5/18 is 25/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 63 × 2 = 126,
20/63 = 20 × 2/63 × 2 = 40/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
5/18 = 5 × 7/18 × 7 = 35/126 - Add the two like fractions:
40/126 + 35/126 = 40 + 35/126 = 75/126 - 75/126 simplified gives 25/42
- So, 20/63 + 5/18 = 25/42
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