Add 3/18 and 90/7
1st number: 3/18, 2nd number: 12 6/7
3/18 + 90/7 is 547/42.
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,
3/18 = 3 × 7/18 × 7 = 21/126 - Likewise, for the 2nd fraction, since 7 × 18 = 126,
90/7 = 90 × 18/7 × 18 = 1620/126 - Add the two like fractions:
21/126 + 1620/126 = 21 + 1620/126 = 1641/126 - 1641/126 simplified gives 547/42
- So, 3/18 + 90/7 = 547/42
In mixed form: 131/42
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