Add 21/7 and 1/30
1st number: 3 0/7, 2nd number: 1/30
21/7 + 1/30 is 91/30.
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,
21/7 = 21 × 30/7 × 30 = 630/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
1/30 = 1 × 7/30 × 7 = 7/210 - Add the two like fractions:
630/210 + 7/210 = 630 + 7/210 = 637/210 - 637/210 simplified gives 91/30
- So, 21/7 + 1/30 = 91/30
In mixed form: 31/30
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