Subtract 72/45 from 90/5
1st number: 18 0/5, 2nd number: 1 27/45
90/5 - 72/45 is 82/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 5 × 9 = 45,
90/5 = 90 × 9/5 × 9 = 810/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
72/45 = 72 × 1/45 × 1 = 72/45 - Subtract the two like fractions:
810/45 - 72/45 = 810 - 72/45 = 738/45 - After reducing the fraction, the answer is 82/5
- In mixed form: 162/5
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