Subtract 8/70 from 30/98
30/98 - 8/70 is 47/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 98 × 5 = 490,
30/98 = 30 × 5/98 × 5 = 150/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
8/70 = 8 × 7/70 × 7 = 56/490 - Subtract the two like fractions:
150/490 - 56/490 = 150 - 56/490 = 94/490 - After reducing the fraction, the answer is 47/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/98-8/70 30/98-16/70 90/98-8/70 30/98-24/70 30/98-40/70 30/98-56/70