Add 21/30 and 6/28
21/30 + 6/28 is 32/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
21/30 = 21 × 14/30 × 14 = 294/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
6/28 = 6 × 15/28 × 15 = 90/420 - Add the two like fractions:
294/420 + 90/420 = 294 + 90/420 = 384/420 - 384/420 simplified gives 32/35
- So, 21/30 + 6/28 = 32/35
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