Add 81/7 and 40/70
1st number: 11 4/7, 2nd number: 40/70
81/7 + 40/70 is 85/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,
81/7 = 81 × 10/7 × 10 = 810/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
40/70 = 40 × 1/70 × 1 = 40/70 - Add the two like fractions:
810/70 + 40/70 = 810 + 40/70 = 850/70 - 850/70 simplified gives 85/7
- So, 81/7 + 40/70 = 85/7
In mixed form: 121/7
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