Subtract 45/70 from 2/45
2/45 - 45/70 is -377/630.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
2/45 = 2 × 14/45 × 14 = 28/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
45/70 = 45 × 9/70 × 9 = 405/630 - Subtract the two like fractions:
28/630 - 405/630 = 28 - 405/630 = -377/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/45-45/70 2/45-90/70 2/90-45/70 6/45-45/70 10/45-45/70 14/45-45/70