Subtract 63/80 from 16/18
16/18 - 63/80 is 73/720.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 18 × 40 = 720,
16/18 = 16 × 40/18 × 40 = 640/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
63/80 = 63 × 9/80 × 9 = 567/720 - Subtract the two like fractions:
640/720 - 567/720 = 640 - 567/720 = 73/720
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/18-63/80 16/36-63/80 48/18-63/80 16/54-63/80 80/18-63/80 16/90-63/80