Answers

Add 15/90 and 63/27

1^st number: 15/90, 2^nd number: 2 9/27

15/90 + 63/27 is 5/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 27 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 90 × 3 = 270,
   15/90 = 15 × 3/90 × 3 = 45/270
3. Likewise, for the 2nd fraction, since 27 × 10 = 270,
   63/27 = 63 × 10/27 × 10 = 630/270
4. Add the two like fractions:
   45/270 + 630/270 = 45 + 630/270 = 675/270
5. 675/270 simplified gives 5/2
6. So, 15/90 + 63/27 = 5/2
   In mixed form: 21/2

MathStep (Works offline)

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

Related: ³⁰/₉₀+⁶³/₂₇ ¹⁵/₉₀+⁶³/₅₄ ⁴⁵/₉₀+⁶³/₂₇ ¹⁵/₉₀+⁶³/₈₁ ⁷⁵/₉₀+⁶³/₂₇

Add Fractions Calculator