Add 72/63 and 20/18
1st number: 1 9/63, 2nd number: 1 2/18
72/63 + 20/18 is 142/63.
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,
72/63 = 72 × 2/63 × 2 = 144/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
20/18 = 20 × 7/18 × 7 = 140/126 - Add the two like fractions:
144/126 + 140/126 = 144 + 140/126 = 284/126 - 284/126 simplified gives 142/63
- So, 72/63 + 20/18 = 142/63
In mixed form: 216/63
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