Subtract 90/16 from 63/8
1st number: 7 7/8, 2nd number: 5 10/16
63/8 - 90/16 is 9/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 16 is 16
Next, find the equivalent fraction of both fractional numbers with denominator 16 - For the 1st fraction, since 8 × 2 = 16,
63/8 = 63 × 2/8 × 2 = 126/16 - Likewise, for the 2nd fraction, since 16 × 1 = 16,
90/16 = 90 × 1/16 × 1 = 90/16 - Subtract the two like fractions:
126/16 - 90/16 = 126 - 90/16 = 36/16 - After reducing the fraction, the answer is 9/4
- In mixed form: 21/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/16-90/16 63/8-90/32 63/24-90/16 63/8-90/48 63/40-90/16 63/8-90/80 63/56-90/16