Add 90/18 and 70/63
1st number: 5 0/18, 2nd number: 1 7/63
90/18 + 70/63 is 55/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 18 × 7 = 126,
90/18 = 90 × 7/18 × 7 = 630/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
70/63 = 70 × 2/63 × 2 = 140/126 - Add the two like fractions:
630/126 + 140/126 = 630 + 140/126 = 770/126 - 770/126 simplified gives 55/9
- So, 90/18 + 70/63 = 55/9
In mixed form: 61/9
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