Answers

Subtract 45/36 from 28/30

1^st number: 28/30, 2^nd number: 1 9/36

28/30 - 45/36 is -19/60.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 36 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 30 × 6 = 180,
   28/30 = 28 × 6/30 × 6 = 168/180
3. Likewise, for the 2nd fraction, since 36 × 5 = 180,
   45/36 = 45 × 5/36 × 5 = 225/180
4. Subtract the two like fractions:
   168/180 - 225/180 = 168 - 225/180 = -57/180
5. After reducing the fraction, the answer is -19/60

MathStep (Works offline)

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

Related: ⁵⁶/₃₀-⁴⁵/₃₆ ²⁸/₃₀-⁹⁰/₃₆ ²⁸/₆₀-⁴⁵/₃₆ ²⁸/₃₀-⁴⁵/₇₂ ⁸⁴/₃₀-⁴⁵/₃₆ ²⁸/₉₀-⁴⁵/₃₆

Subtract Fractions Calculator