Add 15/84 and 90/7
1st number: 15/84, 2nd number: 12 6/7
15/84 + 90/7 is 365/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
15/84 = 15 × 1/84 × 1 = 15/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
90/7 = 90 × 12/7 × 12 = 1080/84 - Add the two like fractions:
15/84 + 1080/84 = 15 + 1080/84 = 1095/84 - 1095/84 simplified gives 365/28
- So, 15/84 + 90/7 = 365/28
In mixed form: 131/28
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