Subtract 3/40 from 42/9
1st number: 4 6/9, 2nd number: 3/40
42/9 - 3/40 is 551/120.
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,
3/40 = 3 × 9/40 × 9 = 27/360 - Subtract the two like fractions:
1680/360 - 27/360 = 1680 - 27/360 = 1653/360 - After reducing the fraction, the answer is 551/120
- In mixed form: 471/120
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