Answers

Add 70/54 and 90/20

1^st number: 1 16/54, 2^nd number: 4 10/20

70/54 + 90/20 is 313/54.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 20 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 54 × 10 = 540,
   70/54 = 70 × 10/54 × 10 = 700/540
3. Likewise, for the 2nd fraction, since 20 × 27 = 540,
   90/20 = 90 × 27/20 × 27 = 2430/540
4. Add the two like fractions:
   700/540 + 2430/540 = 700 + 2430/540 = 3130/540
5. 3130/540 simplified gives 313/54
6. So, 70/54 + 90/20 = 313/54
   In mixed form: 543/54

MathStep (Works offline)

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

Related: ⁷⁰/₅₄+⁹⁰/₄₀ ⁷⁰/₅₄+⁹⁰/₆₀

Add Fractions Calculator