Subtract 18/32 from 1/30
1/30 - 18/32 is -127/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 32 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 30 × 16 = 480,
1/30 = 1 × 16/30 × 16 = 16/480 - Likewise, for the 2nd fraction, since 32 × 15 = 480,
18/32 = 18 × 15/32 × 15 = 270/480 - Subtract the two like fractions:
16/480 - 270/480 = 16 - 270/480 = -254/480 - After reducing the fraction, the answer is -127/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/30-18/32 1/30-36/32 1/60-18/32 1/30-18/64 3/30-18/32 1/30-54/32 1/90-18/32 1/30-18/96 5/30-18/32 1/30-90/32 7/30-18/32