Subtract 49/90 from 12/7
1st number: 1 5/7, 2nd number: 49/90
12/7 - 49/90 is 737/630.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 7 × 90 = 630,
12/7 = 12 × 90/7 × 90 = 1080/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
49/90 = 49 × 7/90 × 7 = 343/630 - Subtract the two like fractions:
1080/630 - 343/630 = 1080 - 343/630 = 737/630 - In mixed form: 1107/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/7-49/90 12/7-98/90 12/14-49/90 36/7-49/90 12/21-49/90 60/7-49/90 12/35-49/90 84/7-49/90 12/49-49/90