Subtract 70/30 from 28/48
1st number: 28/48, 2nd number: 2 10/30
28/48 - 70/30 is -7/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 30 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
28/48 = 28 × 5/48 × 5 = 140/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
70/30 = 70 × 8/30 × 8 = 560/240 - Subtract the two like fractions:
140/240 - 560/240 = 140 - 560/240 = -420/240 - After reducing the fraction, the answer is -7/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/48-70/30 28/96-70/30 28/48-70/60 84/48-70/30 28/48-70/90