Subtract 72/4 from 45/10
1st number: 4 5/10, 2nd number: 18 0/4
45/10 - 72/4 is -27/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 4 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
45/10 = 45 × 2/10 × 2 = 90/20 - Likewise, for the 2nd fraction, since 4 × 5 = 20,
72/4 = 72 × 5/4 × 5 = 360/20 - Subtract the two like fractions:
90/20 - 360/20 = 90 - 360/20 = -270/20 - After reducing the fraction, the answer is -27/2
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