Add 1/15 and 42/84
1/15 + 42/84 is 17/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
1/15 = 1 × 28/15 × 28 = 28/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
42/84 = 42 × 5/84 × 5 = 210/420 - Add the two like fractions:
28/420 + 210/420 = 28 + 210/420 = 238/420 - 238/420 simplified gives 17/30
- So, 1/15 + 42/84 = 17/30
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