Answers

Add 28/84 and 48/45

1^st number: 28/84, 2^nd number: 1 3/45

28/84 + 48/45 is 7/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 45 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 84 × 15 = 1260,
   28/84 = 28 × 15/84 × 15 = 420/1260
3. Likewise, for the 2nd fraction, since 45 × 28 = 1260,
   48/45 = 48 × 28/45 × 28 = 1344/1260
4. Add the two like fractions:
   420/1260 + 1344/1260 = 420 + 1344/1260 = 1764/1260
5. 1764/1260 simplified gives 7/5
6. So, 28/84 + 48/45 = 7/5
   In mixed form: 12/5

MathStep (Works offline)

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

Related: ⁵⁶/₈₄+⁴⁸/₄₅ ²⁸/₈₄+⁹⁶/₄₅ ²⁸/₈₄+⁴⁸/₉₀

Add Fractions Calculator