Subtract 20/48 from 3/30
3/30 - 20/48 is -19/60.
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,
3/30 = 3 × 8/30 × 8 = 24/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
20/48 = 20 × 5/48 × 5 = 100/240 - Subtract the two like fractions:
24/240 - 100/240 = 24 - 100/240 = -76/240 - After reducing the fraction, the answer is -19/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/30-20/48 3/30-40/48 3/60-20/48 3/30-20/96 9/30-20/48 3/30-60/48 3/90-20/48 15/30-20/48 21/30-20/48