Subtract 21/70 from 40/36
1st number: 1 4/36, 2nd number: 21/70
40/36 - 21/70 is 73/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 70 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 36 × 35 = 1260,
40/36 = 40 × 35/36 × 35 = 1400/1260 - Likewise, for the 2nd fraction, since 70 × 18 = 1260,
21/70 = 21 × 18/70 × 18 = 378/1260 - Subtract the two like fractions:
1400/1260 - 378/1260 = 1400 - 378/1260 = 1022/1260 - After reducing the fraction, the answer is 73/90
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