Subtract 21/90 from 72/6
1st number: 12 0/6, 2nd number: 21/90
72/6 - 21/90 is 353/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
72/6 = 72 × 15/6 × 15 = 1080/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
21/90 = 21 × 1/90 × 1 = 21/90 - Subtract the two like fractions:
1080/90 - 21/90 = 1080 - 21/90 = 1059/90 - After reducing the fraction, the answer is 353/30
- In mixed form: 1123/30
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