Subtract 7/4 from 20/70
1st number: 20/70, 2nd number: 1 3/4
20/70 - 7/4 is -41/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 4 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
20/70 = 20 × 2/70 × 2 = 40/140 - Likewise, for the 2nd fraction, since 4 × 35 = 140,
7/4 = 7 × 35/4 × 35 = 245/140 - Subtract the two like fractions:
40/140 - 245/140 = 40 - 245/140 = -205/140 - After reducing the fraction, the answer is -41/28
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