Add 90/7 and 70/8
1st number: 12 6/7, 2nd number: 8 6/8
90/7 + 70/8 is 605/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 7 × 8 = 56,
90/7 = 90 × 8/7 × 8 = 720/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
70/8 = 70 × 7/8 × 7 = 490/56 - Add the two like fractions:
720/56 + 490/56 = 720 + 490/56 = 1210/56 - 1210/56 simplified gives 605/28
- So, 90/7 + 70/8 = 605/28
In mixed form: 2117/28
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