Subtract 21/30 from 90/9
1st number: 10 0/9, 2nd number: 21/30
90/9 - 21/30 is 93/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
90/9 = 90 × 10/9 × 10 = 900/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
21/30 = 21 × 3/30 × 3 = 63/90 - Subtract the two like fractions:
900/90 - 63/90 = 900 - 63/90 = 837/90 - After reducing the fraction, the answer is 93/10
- In mixed form: 93/10
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