Subtract 20/90 from 42/9
1st number: 4 6/9, 2nd number: 20/90
42/9 - 20/90 is 40/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 9 × 10 = 90,
42/9 = 42 × 10/9 × 10 = 420/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
20/90 = 20 × 1/90 × 1 = 20/90 - Subtract the two like fractions:
420/90 - 20/90 = 420 - 20/90 = 400/90 - After reducing the fraction, the answer is 40/9
- In mixed form: 44/9
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