Answers

Add 90/24 and 70/40

1^st number: 3 18/24, 2^nd number: 1 30/40

90/24 + 70/40 is 11/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 24 and 40 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 24 × 5 = 120,
   90/24 = 90 × 5/24 × 5 = 450/120
3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
   70/40 = 70 × 3/40 × 3 = 210/120
4. Add the two like fractions:
   450/120 + 210/120 = 450 + 210/120 = 660/120
5. 660/120 simplified gives 11/2
6. So, 90/24 + 70/40 = 11/2
   In mixed form: 51/2

MathStep (Works offline)

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

Related: ⁹⁰/₄₈+⁷⁰/₄₀ ⁹⁰/₂₄+⁷⁰/₈₀ ⁹⁰/₇₂+⁷⁰/₄₀

Add Fractions Calculator