Subtract 10/45 from 30/49
30/49 - 10/45 is 172/441.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 45 is 2205
Next, find the equivalent fraction of both fractional numbers with denominator 2205 - For the 1st fraction, since 49 × 45 = 2205,
30/49 = 30 × 45/49 × 45 = 1350/2205 - Likewise, for the 2nd fraction, since 45 × 49 = 2205,
10/45 = 10 × 49/45 × 49 = 490/2205 - Subtract the two like fractions:
1350/2205 - 490/2205 = 1350 - 490/2205 = 860/2205 - After reducing the fraction, the answer is 172/441
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/49-10/45 30/49-20/45 30/98-10/45 30/49-10/90 90/49-10/45 30/49-30/45 30/49-50/45 30/49-70/45