Subtract 4/98 from 28/70
28/70 - 4/98 is 88/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 98 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 70 × 7 = 490,
28/70 = 28 × 7/70 × 7 = 196/490 - Likewise, for the 2nd fraction, since 98 × 5 = 490,
4/98 = 4 × 5/98 × 5 = 20/490 - Subtract the two like fractions:
196/490 - 20/490 = 196 - 20/490 = 176/490 - After reducing the fraction, the answer is 88/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/70-4/98 28/70-8/98 84/70-4/98 28/70-12/98 28/70-20/98 28/70-28/98