Subtract 9/45 from 72/10
1st number: 7 2/10, 2nd number: 9/45
72/10 - 9/45 is 7/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
72/10 = 72 × 9/10 × 9 = 648/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
9/45 = 9 × 2/45 × 2 = 18/90 - Subtract the two like fractions:
648/90 - 18/90 = 648 - 18/90 = 630/90 - After reducing the fraction, the answer is 7/1
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