Answers

Subtract 15/90 from 63/8

1^st number: 7 7/8, 2^nd number: 15/90

63/8 - 15/90 is 185/24.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 90 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 8 × 45 = 360,
   63/8 = 63 × 45/8 × 45 = 2835/360
3. Likewise, for the 2nd fraction, since 90 × 4 = 360,
   15/90 = 15 × 4/90 × 4 = 60/360
4. Subtract the two like fractions:
   2835/360 - 60/360 = 2835 - 60/360 = 2775/360
5. After reducing the fraction, the answer is 185/24
6. In mixed form: 717/24

MathStep (Works offline)

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

Related: ⁶³/₈-³⁰/₉₀ ⁶³/₁₆-¹⁵/₉₀ ⁶³/₈-⁴⁵/₉₀ ⁶³/₂₄-¹⁵/₉₀ ⁶³/₈-⁷⁵/₉₀ ⁶³/₄₀-¹⁵/₉₀ ⁶³/₅₆-¹⁵/₉₀

Subtract Fractions Calculator