Subtract 45/30 from 5/8
1st number: 5/8, 2nd number: 1 15/30
5/8 - 45/30 is -7/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
5/8 = 5 × 15/8 × 15 = 75/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
45/30 = 45 × 4/30 × 4 = 180/120 - Subtract the two like fractions:
75/120 - 180/120 = 75 - 180/120 = -105/120 - After reducing the fraction, the answer is -7/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/8-45/30 5/8-90/30 5/16-45/30 5/8-45/60 15/8-45/30 5/24-45/30 5/8-45/90 25/8-45/30 5/40-45/30 35/8-45/30 5/56-45/30