Add 30/7 and 20/30
1st number: 4 2/7, 2nd number: 20/30
30/7 + 20/30 is 104/21.
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,
30/7 = 30 × 30/7 × 30 = 900/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
20/30 = 20 × 7/30 × 7 = 140/210 - Add the two like fractions:
900/210 + 140/210 = 900 + 140/210 = 1040/210 - 1040/210 simplified gives 104/21
- So, 30/7 + 20/30 = 104/21
In mixed form: 420/21
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