Subtract 10/49 from 9/45
9/45 - 10/49 is -1/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 49 is 2205
Next, find the equivalent fraction of both fractional numbers with denominator 2205 - For the 1st fraction, since 45 × 49 = 2205,
9/45 = 9 × 49/45 × 49 = 441/2205 - Likewise, for the 2nd fraction, since 49 × 45 = 2205,
10/49 = 10 × 45/49 × 45 = 450/2205 - Subtract the two like fractions:
441/2205 - 450/2205 = 441 - 450/2205 = -9/2205 - After reducing the fraction, the answer is -1/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/45-10/49 9/45-20/49 9/90-10/49 9/45-10/98 27/45-10/49 9/45-30/49 9/45-50/49 63/45-10/49 9/45-70/49