Subtract 70/20 from 72/9
1st number: 8 0/9, 2nd number: 3 10/20
72/9 - 70/20 is 9/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 9 × 20 = 180,
72/9 = 72 × 20/9 × 20 = 1440/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
70/20 = 70 × 9/20 × 9 = 630/180 - Subtract the two like fractions:
1440/180 - 630/180 = 1440 - 630/180 = 810/180 - After reducing the fraction, the answer is 9/2
- In mixed form: 41/2
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