Subtract 8/49 from 3/45
3/45 - 8/49 is -71/735.
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,
3/45 = 3 × 49/45 × 49 = 147/2205 - Likewise, for the 2nd fraction, since 49 × 45 = 2205,
8/49 = 8 × 45/49 × 45 = 360/2205 - Subtract the two like fractions:
147/2205 - 360/2205 = 147 - 360/2205 = -213/2205 - After reducing the fraction, the answer is -71/735
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/45-8/49 3/45-16/49 3/90-8/49 3/45-8/98 9/45-8/49 3/45-24/49 15/45-8/49 3/45-40/49 21/45-8/49 3/45-56/49