Subtract 21/35 from 4/15
4/15 - 21/35 is -1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 35 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
4/15 = 4 × 7/15 × 7 = 28/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
21/35 = 21 × 3/35 × 3 = 63/105 - Subtract the two like fractions:
28/105 - 63/105 = 28 - 63/105 = -35/105 - After reducing the fraction, the answer is -1/3
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