Add 90/12 and 20/84
1st number: 7 6/12, 2nd number: 20/84
90/12 + 20/84 is 325/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
90/12 = 90 × 7/12 × 7 = 630/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
20/84 = 20 × 1/84 × 1 = 20/84 - Add the two like fractions:
630/84 + 20/84 = 630 + 20/84 = 650/84 - 650/84 simplified gives 325/42
- So, 90/12 + 20/84 = 325/42
In mixed form: 731/42
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