Add 63/42 and 90/18
1st number: 1 21/42, 2nd number: 5 0/18
63/42 + 90/18 is 13/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
63/42 = 63 × 3/42 × 3 = 189/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
90/18 = 90 × 7/18 × 7 = 630/126 - Add the two like fractions:
189/126 + 630/126 = 189 + 630/126 = 819/126 - 819/126 simplified gives 13/2
- So, 63/42 + 90/18 = 13/2
In mixed form: 61/2
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