Subtract 8/45 from 72/30
1st number: 2 12/30, 2nd number: 8/45
72/30 - 8/45 is 20/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
72/30 = 72 × 3/30 × 3 = 216/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
8/45 = 8 × 2/45 × 2 = 16/90 - Subtract the two like fractions:
216/90 - 16/90 = 216 - 16/90 = 200/90 - After reducing the fraction, the answer is 20/9
- In mixed form: 22/9
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