Answers

Subtract 90/70 from 54/16

1^st number: 3 6/16, 2^nd number: 1 20/70

54/16 - 90/70 is 117/56.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 70 is 560
   
   Next, find the equivalent fraction of both fractional numbers with denominator 560
2. For the 1st fraction, since 16 × 35 = 560,
   54/16 = 54 × 35/16 × 35 = 1890/560
3. Likewise, for the 2nd fraction, since 70 × 8 = 560,
   90/70 = 90 × 8/70 × 8 = 720/560
4. Subtract the two like fractions:
   1890/560 - 720/560 = 1890 - 720/560 = 1170/560
5. After reducing the fraction, the answer is 117/56
6. In mixed form: 25/56

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁵⁴/₃₂-⁹⁰/₇₀ ⁵⁴/₄₈-⁹⁰/₇₀ ⁵⁴/₈₀-⁹⁰/₇₀

Subtract Fractions Calculator