Add 20/21 and 10/70
20/21 + 10/70 is 23/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
20/21 = 20 × 10/21 × 10 = 200/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
10/70 = 10 × 3/70 × 3 = 30/210 - Add the two like fractions:
200/210 + 30/210 = 200 + 30/210 = 230/210 - 230/210 simplified gives 23/21
- So, 20/21 + 10/70 = 23/21
In mixed form: 12/21
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