Subtract 8/80 from 16/36
16/36 - 8/80 is 31/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 36 × 20 = 720,
16/36 = 16 × 20/36 × 20 = 320/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
8/80 = 8 × 9/80 × 9 = 72/720 - Subtract the two like fractions:
320/720 - 72/720 = 320 - 72/720 = 248/720 - After reducing the fraction, the answer is 31/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/36-8/80 16/36-16/80 16/72-8/80 48/36-8/80 16/36-24/80 80/36-8/80 16/36-40/80 16/36-56/80