Subtract 20/70 from 5/75
5/75 - 20/70 is -23/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 70 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
5/75 = 5 × 14/75 × 14 = 70/1050 - Likewise, for the 2nd fraction, since 70 × 15 = 1050,
20/70 = 20 × 15/70 × 15 = 300/1050 - Subtract the two like fractions:
70/1050 - 300/1050 = 70 - 300/1050 = -230/1050 - After reducing the fraction, the answer is -23/105
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