Subtract 4/70 from 28/50
28/50 - 4/70 is 88/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 70 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 50 × 7 = 350,
28/50 = 28 × 7/50 × 7 = 196/350 - Likewise, for the 2nd fraction, since 70 × 5 = 350,
4/70 = 4 × 5/70 × 5 = 20/350 - Subtract the two like fractions:
196/350 - 20/350 = 196 - 20/350 = 176/350 - After reducing the fraction, the answer is 88/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/50-4/70 28/50-8/70 84/50-4/70 28/50-12/70 28/50-20/70 28/50-28/70