Subtract 3/15 from 30/84
30/84 - 3/15 is 11/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 15 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
30/84 = 30 × 5/84 × 5 = 150/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
3/15 = 3 × 28/15 × 28 = 84/420 - Subtract the two like fractions:
150/420 - 84/420 = 150 - 84/420 = 66/420 - After reducing the fraction, the answer is 11/70
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