Subtract 3/30 from 12/32
12/32 - 3/30 is 11/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 30 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 32 × 15 = 480,
12/32 = 12 × 15/32 × 15 = 180/480 - Likewise, for the 2nd fraction, since 30 × 16 = 480,
3/30 = 3 × 16/30 × 16 = 48/480 - Subtract the two like fractions:
180/480 - 48/480 = 180 - 48/480 = 132/480 - After reducing the fraction, the answer is 11/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/32-3/30 12/32-6/30 12/64-3/30 12/32-3/60 36/32-3/30 12/32-9/30 12/96-3/30 12/32-3/90 60/32-3/30 12/32-15/30 84/32-3/30 12/32-21/30