Answers

Add 16/84 and 90/18

1^st number: 16/84, 2^nd number: 5 0/18

16/84 + 90/18 is 109/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 18 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 84 × 3 = 252,
   16/84 = 16 × 3/84 × 3 = 48/252
3. Likewise, for the 2nd fraction, since 18 × 14 = 252,
   90/18 = 90 × 14/18 × 14 = 1260/252
4. Add the two like fractions:
   48/252 + 1260/252 = 48 + 1260/252 = 1308/252
5. 1308/252 simplified gives 109/21
6. So, 16/84 + 90/18 = 109/21
   In mixed form: 54/21

MathStep (Works offline)

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

Related: ³²/₈₄+⁹⁰/₁₈ ¹⁶/₈₄+⁹⁰/₃₆ ⁴⁸/₈₄+⁹⁰/₁₈ ¹⁶/₈₄+⁹⁰/₅₄ ⁸⁰/₈₄+⁹⁰/₁₈

Add Fractions Calculator