Add 7/84 and 90/12
1st number: 7/84, 2nd number: 7 6/12
7/84 + 90/12 is 91/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
7/84 = 7 × 1/84 × 1 = 7/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
90/12 = 90 × 7/12 × 7 = 630/84 - Add the two like fractions:
7/84 + 630/84 = 7 + 630/84 = 637/84 - 637/84 simplified gives 91/12
- So, 7/84 + 90/12 = 91/12
In mixed form: 77/12
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