Subtract 10/49 from 45/72
45/72 - 10/49 is 165/392.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 49 is 3528
Next, find the equivalent fraction of both fractional numbers with denominator 3528 - For the 1st fraction, since 72 × 49 = 3528,
45/72 = 45 × 49/72 × 49 = 2205/3528 - Likewise, for the 2nd fraction, since 49 × 72 = 3528,
10/49 = 10 × 72/49 × 72 = 720/3528 - Subtract the two like fractions:
2205/3528 - 720/3528 = 2205 - 720/3528 = 1485/3528 - After reducing the fraction, the answer is 165/392
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/72-10/49 45/72-20/49 45/72-10/98 45/72-30/49 45/72-50/49 45/72-70/49