Subtract 72/14 from 49/90
1st number: 49/90, 2nd number: 5 2/14
49/90 - 72/14 is -2897/630.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 14 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
49/90 = 49 × 7/90 × 7 = 343/630 - Likewise, for the 2nd fraction, since 14 × 45 = 630,
72/14 = 72 × 45/14 × 45 = 3240/630 - Subtract the two like fractions:
343/630 - 3240/630 = 343 - 3240/630 = -2897/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/90-72/14 49/90-72/28 49/90-72/42 49/90-72/70 49/90-72/98