Subtract 7/4 from 10/90
1st number: 10/90, 2nd number: 1 3/4
10/90 - 7/4 is -59/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 4 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
10/90 = 10 × 2/90 × 2 = 20/180 - Likewise, for the 2nd fraction, since 4 × 45 = 180,
7/4 = 7 × 45/4 × 45 = 315/180 - Subtract the two like fractions:
20/180 - 315/180 = 20 - 315/180 = -295/180 - After reducing the fraction, the answer is -59/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/90-7/4 10/90-14/4 10/90-7/8 30/90-7/4 10/90-21/4 10/90-7/12 50/90-7/4 10/90-35/4 10/90-7/20 70/90-7/4 10/90-49/4 10/90-7/28