Subtract 15/90 from 63/4
1st number: 15 3/4, 2nd number: 15/90
63/4 - 15/90 is 187/12.
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,
63/4 = 63 × 45/4 × 45 = 2835/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
15/90 = 15 × 2/90 × 2 = 30/180 - Subtract the two like fractions:
2835/180 - 30/180 = 2835 - 30/180 = 2805/180 - After reducing the fraction, the answer is 187/12
- In mixed form: 157/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/4-30/90 63/8-15/90 63/4-45/90 63/12-15/90 63/4-75/90 63/20-15/90 63/28-15/90