Add 60/81 and 21/70
60/81 + 21/70 is 281/270.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 70 is 5670
Next, find the equivalent fraction of both fractional numbers with denominator 5670 - For the 1st fraction, since 81 × 70 = 5670,
60/81 = 60 × 70/81 × 70 = 4200/5670 - Likewise, for the 2nd fraction, since 70 × 81 = 5670,
21/70 = 21 × 81/70 × 81 = 1701/5670 - Add the two like fractions:
4200/5670 + 1701/5670 = 4200 + 1701/5670 = 5901/5670 - 5901/5670 simplified gives 281/270
- So, 60/81 + 21/70 = 281/270
In mixed form: 111/270
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