Subtract 10/25 from 40/42
40/42 - 10/25 is 58/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 25 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 42 × 25 = 1050,
40/42 = 40 × 25/42 × 25 = 1000/1050 - Likewise, for the 2nd fraction, since 25 × 42 = 1050,
10/25 = 10 × 42/25 × 42 = 420/1050 - Subtract the two like fractions:
1000/1050 - 420/1050 = 1000 - 420/1050 = 580/1050 - After reducing the fraction, the answer is 58/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/42-10/25 40/42-20/25 40/84-10/25 40/42-10/50 40/42-30/25 40/42-10/75 40/42-50/25 40/42-70/25