Subtract 28/49 from 9/10
9/10 - 28/49 is 23/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 49 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 10 × 49 = 490,
9/10 = 9 × 49/10 × 49 = 441/490 - Likewise, for the 2nd fraction, since 49 × 10 = 490,
28/49 = 28 × 10/49 × 10 = 280/490 - Subtract the two like fractions:
441/490 - 280/490 = 441 - 280/490 = 161/490 - After reducing the fraction, the answer is 23/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/10-28/49 9/10-56/49 9/20-28/49 9/10-28/98 27/10-28/49 9/10-84/49 9/30-28/49 45/10-28/49 9/50-28/49 63/10-28/49 9/70-28/49