Add 21/18 and 63/7
1st number: 1 3/18, 2nd number: 9 0/7
21/18 + 63/7 is 61/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 7 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
21/18 = 21 × 7/18 × 7 = 147/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
63/7 = 63 × 18/7 × 18 = 1134/126 - Add the two like fractions:
147/126 + 1134/126 = 147 + 1134/126 = 1281/126 - 1281/126 simplified gives 61/6
- So, 21/18 + 63/7 = 61/6
In mixed form: 101/6
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