Answers

Add 90/27 and 30/40

1^st number: 3 9/27, 2^nd number: 30/40

90/27 + 30/40 is 49/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 40 is 1080
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1080
2. For the 1st fraction, since 27 × 40 = 1080,
   90/27 = 90 × 40/27 × 40 = 3600/1080
3. Likewise, for the 2nd fraction, since 40 × 27 = 1080,
   30/40 = 30 × 27/40 × 27 = 810/1080
4. Add the two like fractions:
   3600/1080 + 810/1080 = 3600 + 810/1080 = 4410/1080
5. 4410/1080 simplified gives 49/12
6. So, 90/27 + 30/40 = 49/12
   In mixed form: 41/12

MathStep (Works offline)

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

Related: ⁹⁰/₂₇+⁶⁰/₄₀ ⁹⁰/₅₄+³⁰/₄₀ ⁹⁰/₂₇+³⁰/₈₀ ⁹⁰/₂₇+⁹⁰/₄₀ ⁹⁰/₈₁+³⁰/₄₀

Add Fractions Calculator