Add 4/7 and 20/30
4/7 + 20/30 is 26/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 7 × 30 = 210,
4/7 = 4 × 30/7 × 30 = 120/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
20/30 = 20 × 7/30 × 7 = 140/210 - Add the two like fractions:
120/210 + 140/210 = 120 + 140/210 = 260/210 - 260/210 simplified gives 26/21
- So, 4/7 + 20/30 = 26/21
In mixed form: 15/21
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