Add 18/20 and 7/63
18/20 + 7/63 is 91/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
18/20 = 18 × 63/20 × 63 = 1134/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
7/63 = 7 × 20/63 × 20 = 140/1260 - Add the two like fractions:
1134/1260 + 140/1260 = 1134 + 140/1260 = 1274/1260 - 1274/1260 simplified gives 91/90
- So, 18/20 + 7/63 = 91/90
In mixed form: 11/90
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