Answers

Subtract 81/35 from 2/45

1^st number: 2/45, 2^nd number: 2 11/35

2/45 - 81/35 is -143/63.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 35 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 45 × 7 = 315,
   2/45 = 2 × 7/45 × 7 = 14/315
3. Likewise, for the 2nd fraction, since 35 × 9 = 315,
   81/35 = 81 × 9/35 × 9 = 729/315
4. Subtract the two like fractions:
   14/315 - 729/315 = 14 - 729/315 = -715/315
5. After reducing the fraction, the answer is -143/63

MathStep (Works offline)

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

Related: ⁴/₄₅-⁸¹/₃₅ ²/₉₀-⁸¹/₃₅ ²/₄₅-⁸¹/₇₀ ⁶/₄₅-⁸¹/₃₅ ¹⁰/₄₅-⁸¹/₃₅ ¹⁴/₄₅-⁸¹/₃₅

Subtract Fractions Calculator