Add 30/84 and 7/21
30/84 + 7/21 is 29/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
30/84 = 30 × 1/84 × 1 = 30/84 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
7/21 = 7 × 4/21 × 4 = 28/84 - Add the two like fractions:
30/84 + 28/84 = 30 + 28/84 = 58/84 - 58/84 simplified gives 29/42
- So, 30/84 + 7/21 = 29/42
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