Add 15/84 and 3/30
15/84 + 3/30 is 39/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
15/84 = 15 × 5/84 × 5 = 75/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
3/30 = 3 × 14/30 × 14 = 42/420 - Add the two like fractions:
75/420 + 42/420 = 75 + 42/420 = 117/420 - 117/420 simplified gives 39/140
- So, 15/84 + 3/30 = 39/140
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