Answers

Add 90/45 and 54/84

1^st number: 2 0/45, 2^nd number: 54/84

90/45 + 54/84 is 37/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 84 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 45 × 28 = 1260,
   90/45 = 90 × 28/45 × 28 = 2520/1260
3. Likewise, for the 2nd fraction, since 84 × 15 = 1260,
   54/84 = 54 × 15/84 × 15 = 810/1260
4. Add the two like fractions:
   2520/1260 + 810/1260 = 2520 + 810/1260 = 3330/1260
5. 3330/1260 simplified gives 37/14
6. So, 90/45 + 54/84 = 37/14
   In mixed form: 29/14

MathStep (Works offline)

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

Related:

Add Fractions Calculator