Subtract 20/18 from 45/5
1st number: 9 0/5, 2nd number: 1 2/18
45/5 - 20/18 is 71/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
45/5 = 45 × 18/5 × 18 = 810/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
20/18 = 20 × 5/18 × 5 = 100/90 - Subtract the two like fractions:
810/90 - 100/90 = 810 - 100/90 = 710/90 - After reducing the fraction, the answer is 71/9
- In mixed form: 78/9
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