Add 7/21 and 24/30
7/21 + 24/30 is 17/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
7/21 = 7 × 10/21 × 10 = 70/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
24/30 = 24 × 7/30 × 7 = 168/210 - Add the two like fractions:
70/210 + 168/210 = 70 + 168/210 = 238/210 - 238/210 simplified gives 17/15
- So, 7/21 + 24/30 = 17/15
In mixed form: 12/15
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