Subtract 15/63 from 10/40
10/40 - 15/63 is 1/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 63 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 40 × 63 = 2520,
10/40 = 10 × 63/40 × 63 = 630/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
15/63 = 15 × 40/63 × 40 = 600/2520 - Subtract the two like fractions:
630/2520 - 600/2520 = 630 - 600/2520 = 30/2520 - After reducing the fraction, the answer is 1/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/40-15/63 10/40-30/63 10/80-15/63 30/40-15/63 10/40-45/63 50/40-15/63 10/40-75/63 70/40-15/63