Subtract 50/90 from 7/4
1st number: 1 3/4, 2nd number: 50/90
7/4 - 50/90 is 43/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
7/4 = 7 × 45/4 × 45 = 315/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
50/90 = 50 × 2/90 × 2 = 100/180 - Subtract the two like fractions:
315/180 - 100/180 = 315 - 100/180 = 215/180 - After reducing the fraction, the answer is 43/36
- In mixed form: 17/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/4-50/90 7/8-50/90 21/4-50/90 7/12-50/90 35/4-50/90 7/20-50/90 49/4-50/90 7/28-50/90