Subtract 20/40 from 42/9
1st number: 4 6/9, 2nd number: 20/40
42/9 - 20/40 is 25/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 9 × 40 = 360,
42/9 = 42 × 40/9 × 40 = 1680/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
20/40 = 20 × 9/40 × 9 = 180/360 - Subtract the two like fractions:
1680/360 - 180/360 = 1680 - 180/360 = 1500/360 - After reducing the fraction, the answer is 25/6
- In mixed form: 41/6
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