Subtract 27/90 from 54/35
1st number: 1 19/35, 2nd number: 27/90
54/35 - 27/90 is 87/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 35 × 18 = 630,
54/35 = 54 × 18/35 × 18 = 972/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
27/90 = 27 × 7/90 × 7 = 189/630 - Subtract the two like fractions:
972/630 - 189/630 = 972 - 189/630 = 783/630 - After reducing the fraction, the answer is 87/70
- In mixed form: 117/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/35-54/90 54/70-27/90 54/35-81/90