Subtract 75/28 from 9/70
1st number: 9/70, 2nd number: 2 19/28
9/70 - 75/28 is -51/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
9/70 = 9 × 2/70 × 2 = 18/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
75/28 = 75 × 5/28 × 5 = 375/140 - Subtract the two like fractions:
18/140 - 375/140 = 18 - 375/140 = -357/140 - After reducing the fraction, the answer is -51/20
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