Add 27/10 and 21/7
1st number: 2 7/10, 2nd number: 3 0/7
27/10 + 21/7 is 57/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 7 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 10 × 7 = 70,
27/10 = 27 × 7/10 × 7 = 189/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
21/7 = 21 × 10/7 × 10 = 210/70 - Add the two like fractions:
189/70 + 210/70 = 189 + 210/70 = 399/70 - 399/70 simplified gives 57/10
- So, 27/10 + 21/7 = 57/10
In mixed form: 57/10
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