Add 90/63 and 84/18
1st number: 1 27/63, 2nd number: 4 12/18
90/63 + 84/18 is 128/21.
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,
90/63 = 90 × 2/63 × 2 = 180/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
84/18 = 84 × 7/18 × 7 = 588/126 - Add the two like fractions:
180/126 + 588/126 = 180 + 588/126 = 768/126 - 768/126 simplified gives 128/21
- So, 90/63 + 84/18 = 128/21
In mixed form: 62/21
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