Subtract 18/16 from 3/28
1st number: 3/28, 2nd number: 1 2/16
3/28 - 18/16 is -57/56.
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,
3/28 = 3 × 4/28 × 4 = 12/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
18/16 = 18 × 7/16 × 7 = 126/112 - Subtract the two like fractions:
12/112 - 126/112 = 12 - 126/112 = -114/112 - After reducing the fraction, the answer is -57/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/28-18/16 3/28-36/16 3/56-18/16 3/28-18/32 9/28-18/16 3/28-54/16 3/84-18/16 3/28-18/48 15/28-18/16 3/28-90/16 3/28-18/80 21/28-18/16