Subtract 72/48 from 7/30
1st number: 7/30, 2nd number: 1 24/48
7/30 - 72/48 is -19/15.
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,
7/30 = 7 × 8/30 × 8 = 56/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
72/48 = 72 × 5/48 × 5 = 360/240 - Subtract the two like fractions:
56/240 - 360/240 = 56 - 360/240 = -304/240 - After reducing the fraction, the answer is -19/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/30-72/48 7/60-72/48 7/30-72/96 21/30-72/48 7/90-72/48 35/30-72/48 49/30-72/48