Subtract 1/70 from 45/54
45/54 - 1/70 is 86/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 70 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 54 × 35 = 1890,
45/54 = 45 × 35/54 × 35 = 1575/1890 - Likewise, for the 2nd fraction, since 70 × 27 = 1890,
1/70 = 1 × 27/70 × 27 = 27/1890 - Subtract the two like fractions:
1575/1890 - 27/1890 = 1575 - 27/1890 = 1548/1890 - After reducing the fraction, the answer is 86/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/54-1/70 45/54-2/70 45/54-3/70 45/54-5/70 45/54-7/70