Add 21/7 and 2/30
1st number: 3 0/7, 2nd number: 2/30
21/7 + 2/30 is 46/15.
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,
2/30 = 2 × 7/30 × 7 = 14/210 - Add the two like fractions:
630/210 + 14/210 = 630 + 14/210 = 644/210 - 644/210 simplified gives 46/15
- So, 21/7 + 2/30 = 46/15
In mixed form: 31/15
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