Subtract 9/8 from 54/30
1st number: 1 24/30, 2nd number: 1 1/8
54/30 - 9/8 is 27/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
54/30 = 54 × 4/30 × 4 = 216/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
9/8 = 9 × 15/8 × 15 = 135/120 - Subtract the two like fractions:
216/120 - 135/120 = 216 - 135/120 = 81/120 - After reducing the fraction, the answer is 27/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/30-18/8 54/60-9/8 54/30-9/16 54/30-27/8 54/90-9/8 54/30-9/24 54/30-45/8 54/30-9/40 54/30-63/8 54/30-9/56