Subtract 6/70 from 30/49
30/49 - 6/70 is 129/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 49 × 10 = 490,
30/49 = 30 × 10/49 × 10 = 300/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
6/70 = 6 × 7/70 × 7 = 42/490 - Subtract the two like fractions:
300/490 - 42/490 = 300 - 42/490 = 258/490 - After reducing the fraction, the answer is 129/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/49-6/70 30/49-12/70 30/98-6/70 90/49-6/70 30/49-18/70 30/49-30/70 30/49-42/70