Subtract 18/16 from 1/28
1st number: 1/28, 2nd number: 1 2/16
1/28 - 18/16 is -61/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 16 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 28 × 4 = 112,
1/28 = 1 × 4/28 × 4 = 4/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
18/16 = 18 × 7/16 × 7 = 126/112 - Subtract the two like fractions:
4/112 - 126/112 = 4 - 126/112 = -122/112 - After reducing the fraction, the answer is -61/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/28-18/16 1/28-36/16 1/56-18/16 1/28-18/32 3/28-18/16 1/28-54/16 1/84-18/16 1/28-18/48 5/28-18/16 1/28-90/16 1/28-18/80 7/28-18/16