Subtract 20/30 from 70/9
1st number: 7 7/9, 2nd number: 20/30
70/9 - 20/30 is 64/9.
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,
70/9 = 70 × 10/9 × 10 = 700/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
20/30 = 20 × 3/30 × 3 = 60/90 - Subtract the two like fractions:
700/90 - 60/90 = 700 - 60/90 = 640/90 - After reducing the fraction, the answer is 64/9
- In mixed form: 71/9
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