Answers

Add 28/84 and 5/40

28/84 + 5/40 is 11/24.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 40 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 84 × 10 = 840,
   28/84 = 28 × 10/84 × 10 = 280/840
3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
   5/40 = 5 × 21/40 × 21 = 105/840
4. Add the two like fractions:
   280/840 + 105/840 = 280 + 105/840 = 385/840
5. 385/840 simplified gives 11/24
6. So, 28/84 + 5/40 = 11/24

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