Subtract 18/56 from 2/45
2/45 - 18/56 is -349/1260.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 56 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 45 × 56 = 2520,
2/45 = 2 × 56/45 × 56 = 112/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
18/56 = 18 × 45/56 × 45 = 810/2520 - Subtract the two like fractions:
112/2520 - 810/2520 = 112 - 810/2520 = -698/2520 - After reducing the fraction, the answer is -349/1260
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/45-18/56 2/45-36/56 2/90-18/56 6/45-18/56 2/45-54/56 10/45-18/56 2/45-90/56 14/45-18/56