Answers

Add 30/18 and 60/45

1^st number: 1 12/18, 2^nd number: 1 15/45

30/18 + 60/45 is 3/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 45 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 18 × 5 = 90,
   30/18 = 30 × 5/18 × 5 = 150/90
3. Likewise, for the 2nd fraction, since 45 × 2 = 90,
   60/45 = 60 × 2/45 × 2 = 120/90
4. Add the two like fractions:
   150/90 + 120/90 = 150 + 120/90 = 270/90
5. 270/90 simplified gives 3/1
6. So, 30/18 + 60/45 = 3/1

MathStep (Works offline)

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

Related: ⁶⁰/₁₈+⁶⁰/₄₅ ³⁰/₃₆+⁶⁰/₄₅ ³⁰/₁₈+⁶⁰/₉₀ ⁹⁰/₁₈+⁶⁰/₄₅ ³⁰/₅₄+⁶⁰/₄₅ ³⁰/₉₀+⁶⁰/₄₅

Add Fractions Calculator