Subtract 9/42 from 40/4
1st number: 10 0/4, 2nd number: 9/42
40/4 - 9/42 is 137/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
40/4 = 40 × 21/4 × 21 = 840/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
9/42 = 9 × 2/42 × 2 = 18/84 - Subtract the two like fractions:
840/84 - 18/84 = 840 - 18/84 = 822/84 - After reducing the fraction, the answer is 137/14
- In mixed form: 911/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/4-9/42 40/4-18/42 40/8-9/42 40/4-9/84 40/4-27/42 40/12-9/42 40/4-45/42 40/20-9/42 40/4-63/42 40/28-9/42