Subtract 1/30 from 18/8
1st number: 2 2/8, 2nd number: 1/30
18/8 - 1/30 is 133/60.
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,
18/8 = 18 × 15/8 × 15 = 270/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
1/30 = 1 × 4/30 × 4 = 4/120 - Subtract the two like fractions:
270/120 - 4/120 = 270 - 4/120 = 266/120 - After reducing the fraction, the answer is 133/60
- In mixed form: 213/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/8-1/30 18/8-2/30 18/16-1/30 18/8-1/60 54/8-1/30 18/8-3/30 18/24-1/30 18/8-1/90 90/8-1/30 18/8-5/30 18/40-1/30 18/8-7/30 18/56-1/30