Subtract 75/45 from 1/20
1st number: 1/20, 2nd number: 1 30/45
1/20 - 75/45 is -97/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
1/20 = 1 × 9/20 × 9 = 9/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
75/45 = 75 × 4/45 × 4 = 300/180 - Subtract the two like fractions:
9/180 - 300/180 = 9 - 300/180 = -291/180 - After reducing the fraction, the answer is -97/60
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