Subtract 63/35 from 21/81
1st number: 21/81, 2nd number: 1 28/35
21/81 - 63/35 is -208/135.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 35 is 2835
Next, find the equivalent fraction of both fractional numbers with denominator 2835 - For the 1st fraction, since 81 × 35 = 2835,
21/81 = 21 × 35/81 × 35 = 735/2835 - Likewise, for the 2nd fraction, since 35 × 81 = 2835,
63/35 = 63 × 81/35 × 81 = 5103/2835 - Subtract the two like fractions:
735/2835 - 5103/2835 = 735 - 5103/2835 = -4368/2835 - After reducing the fraction, the answer is -208/135
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