Subtract 45/49 from 20/15
1st number: 1 5/15, 2nd number: 45/49
20/15 - 45/49 is 61/147.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 49 is 735
Next, find the equivalent fraction of both fractional numbers with denominator 735 - For the 1st fraction, since 15 × 49 = 735,
20/15 = 20 × 49/15 × 49 = 980/735 - Likewise, for the 2nd fraction, since 49 × 15 = 735,
45/49 = 45 × 15/49 × 15 = 675/735 - Subtract the two like fractions:
980/735 - 675/735 = 980 - 675/735 = 305/735 - After reducing the fraction, the answer is 61/147
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/15-45/49 20/15-90/49 20/30-45/49 20/15-45/98 60/15-45/49 20/45-45/49 20/75-45/49