Subtract 5/90 from 12/16
12/16 - 5/90 is 25/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 16 × 45 = 720,
12/16 = 12 × 45/16 × 45 = 540/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
5/90 = 5 × 8/90 × 8 = 40/720 - Subtract the two like fractions:
540/720 - 40/720 = 540 - 40/720 = 500/720 - After reducing the fraction, the answer is 25/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/16-5/90 12/16-10/90 12/32-5/90 36/16-5/90 12/16-15/90 12/48-5/90 60/16-5/90 12/16-25/90 12/80-5/90 84/16-5/90 12/16-35/90