Answers

Add 30/15 and 40/90

1^st number: 2 0/15, 2^nd number: 40/90

30/15 + 40/90 is 22/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 90 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 15 × 6 = 90,
   30/15 = 30 × 6/15 × 6 = 180/90
3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
   40/90 = 40 × 1/90 × 1 = 40/90
4. Add the two like fractions:
   180/90 + 40/90 = 180 + 40/90 = 220/90
5. 220/90 simplified gives 22/9
6. So, 30/15 + 40/90 = 22/9
   In mixed form: 24/9

MathStep (Works offline)

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

Related: ⁶⁰/₁₅+⁴⁰/₉₀ ³⁰/₁₅+⁸⁰/₉₀ ⁹⁰/₁₅+⁴⁰/₉₀ ³⁰/₄₅+⁴⁰/₉₀ ³⁰/₇₅+⁴⁰/₉₀

Add Fractions Calculator