Answers

Subtract 15/40 from 45/35

1^st number: 1 10/35, 2^nd number: 15/40

45/35 - 15/40 is 51/56.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 40 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 35 × 8 = 280,
   45/35 = 45 × 8/35 × 8 = 360/280
3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
   15/40 = 15 × 7/40 × 7 = 105/280
4. Subtract the two like fractions:
   360/280 - 105/280 = 360 - 105/280 = 255/280
5. After reducing the fraction, the answer is 51/56

MathStep (Works offline)

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

Related: ⁹⁰/₃₅-¹⁵/₄₀ ⁴⁵/₃₅-³⁰/₄₀ ⁴⁵/₇₀-¹⁵/₄₀ ⁴⁵/₃₅-¹⁵/₈₀ ⁴⁵/₃₅-⁴⁵/₄₀ ⁴⁵/₃₅-⁷⁵/₄₀

Subtract Fractions Calculator