Subtract 72/10 from 45/90
1st number: 45/90, 2nd number: 7 2/10
45/90 - 72/10 is -67/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
45/90 = 45 × 1/90 × 1 = 45/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
72/10 = 72 × 9/10 × 9 = 648/90 - Subtract the two like fractions:
45/90 - 648/90 = 45 - 648/90 = -603/90 - After reducing the fraction, the answer is -67/10
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