Subtract 12/16 from 28/18
1st number: 1 10/18, 2nd number: 12/16
28/18 - 12/16 is 29/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 18 × 8 = 144,
28/18 = 28 × 8/18 × 8 = 224/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
12/16 = 12 × 9/16 × 9 = 108/144 - Subtract the two like fractions:
224/144 - 108/144 = 224 - 108/144 = 116/144 - After reducing the fraction, the answer is 29/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/18-12/16 28/18-24/16 28/36-12/16 28/18-12/32 84/18-12/16 28/18-36/16 28/54-12/16 28/18-12/48 28/18-60/16 28/90-12/16 28/18-12/80 28/18-84/16