Add 70/8 and 81/7
1st number: 8 6/8, 2nd number: 11 4/7
70/8 + 81/7 is 569/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
70/8 = 70 × 7/8 × 7 = 490/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
81/7 = 81 × 8/7 × 8 = 648/56 - Add the two like fractions:
490/56 + 648/56 = 490 + 648/56 = 1138/56 - 1138/56 simplified gives 569/28
- So, 70/8 + 81/7 = 569/28
In mixed form: 209/28
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