Subtract 42/8 from 45/14
1st number: 3 3/14, 2nd number: 5 2/8
45/14 - 42/8 is -57/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 14 × 4 = 56,
45/14 = 45 × 4/14 × 4 = 180/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
42/8 = 42 × 7/8 × 7 = 294/56 - Subtract the two like fractions:
180/56 - 294/56 = 180 - 294/56 = -114/56 - After reducing the fraction, the answer is -57/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/14-42/8 45/14-84/8 45/28-42/8 45/14-42/16 45/42-42/8 45/14-42/24 45/70-42/8 45/14-42/40 45/98-42/8 45/14-42/56