Add 90/42 and 30/63
1st number: 2 6/42, 2nd number: 30/63
90/42 + 30/63 is 55/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
90/42 = 90 × 3/42 × 3 = 270/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
30/63 = 30 × 2/63 × 2 = 60/126 - Add the two like fractions:
270/126 + 60/126 = 270 + 60/126 = 330/126 - 330/126 simplified gives 55/21
- So, 90/42 + 30/63 = 55/21
In mixed form: 213/21
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