Subtract 12/90 from 50/7
1st number: 7 1/7, 2nd number: 12/90
50/7 - 12/90 is 736/105.
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,
50/7 = 50 × 90/7 × 90 = 4500/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
12/90 = 12 × 7/90 × 7 = 84/630 - Subtract the two like fractions:
4500/630 - 84/630 = 4500 - 84/630 = 4416/630 - After reducing the fraction, the answer is 736/105
- In mixed form: 71/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/7-24/90 50/14-12/90 50/7-36/90 50/21-12/90 50/7-60/90 50/35-12/90 50/7-84/90 50/49-12/90