Subtract 63/16 from 70/80
1st number: 70/80, 2nd number: 3 15/16
70/80 - 63/16 is -49/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
70/80 = 70 × 1/80 × 1 = 70/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
63/16 = 63 × 5/16 × 5 = 315/80 - Subtract the two like fractions:
70/80 - 315/80 = 70 - 315/80 = -245/80 - After reducing the fraction, the answer is -49/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/80-63/32 70/80-63/48 70/80-63/80