Subtract 10/63 from 25/42
25/42 - 10/63 is 55/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
25/42 = 25 × 3/42 × 3 = 75/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
10/63 = 10 × 2/63 × 2 = 20/126 - Subtract the two like fractions:
75/126 - 20/126 = 75 - 20/126 = 55/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/42-10/63 25/42-20/63 25/84-10/63 75/42-10/63 25/42-30/63 25/42-50/63 25/42-70/63