Add 28/7 and 81/10
1st number: 4 0/7, 2nd number: 8 1/10
28/7 + 81/10 is 121/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,
28/7 = 28 × 10/7 × 10 = 280/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
81/10 = 81 × 7/10 × 7 = 567/70 - Add the two like fractions:
280/70 + 567/70 = 280 + 567/70 = 847/70 - 847/70 simplified gives 121/10
- So, 28/7 + 81/10 = 121/10
In mixed form: 121/10
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