Subtract 54/36 from 90/70
1st number: 1 20/70, 2nd number: 1 18/36
90/70 - 54/36 is -3/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 36 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 70 × 18 = 1260,
90/70 = 90 × 18/70 × 18 = 1620/1260 - Likewise, for the 2nd fraction, since 36 × 35 = 1260,
54/36 = 54 × 35/36 × 35 = 1890/1260 - Subtract the two like fractions:
1620/1260 - 1890/1260 = 1620 - 1890/1260 = -270/1260 - After reducing the fraction, the answer is -3/14
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