Subtract 14/90 from 15/4
1st number: 3 3/4, 2nd number: 14/90
15/4 - 14/90 is 647/180.
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,
15/4 = 15 × 45/4 × 45 = 675/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
14/90 = 14 × 2/90 × 2 = 28/180 - Subtract the two like fractions:
675/180 - 28/180 = 675 - 28/180 = 647/180 - In mixed form: 3107/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/4-14/90 15/4-28/90 15/8-14/90 45/4-14/90 15/4-42/90 15/12-14/90 75/4-14/90 15/4-70/90 15/20-14/90 15/4-98/90 15/28-14/90