Subtract 12/48 from 9/30
9/30 - 12/48 is 1/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 30 × 8 = 240,
9/30 = 9 × 8/30 × 8 = 72/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
12/48 = 12 × 5/48 × 5 = 60/240 - Subtract the two like fractions:
72/240 - 60/240 = 72 - 60/240 = 12/240 - After reducing the fraction, the answer is 1/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/30-12/48 9/30-24/48 9/60-12/48 9/30-12/96 27/30-12/48 9/30-36/48 9/90-12/48 45/30-12/48 9/30-60/48 63/30-12/48 9/30-84/48