Add 7/10 and 8/21
7/10 + 8/21 is 227/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
7/10 = 7 × 21/10 × 21 = 147/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
8/21 = 8 × 10/21 × 10 = 80/210 - Add the two like fractions:
147/210 + 80/210 = 147 + 80/210 = 227/210 - So, 7/10 + 8/21 = 227/210
In mixed form: 117/210
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