Add 90/12 and 15/84
1st number: 7 6/12, 2nd number: 15/84
90/12 + 15/84 is 215/28.
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,
15/84 = 15 × 1/84 × 1 = 15/84 - Add the two like fractions:
630/84 + 15/84 = 630 + 15/84 = 645/84 - 645/84 simplified gives 215/28
- So, 90/12 + 15/84 = 215/28
In mixed form: 719/28
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