Answers

Add 28/84 and 30/80

28/84 + 30/80 is 17/24.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 80 is 1680
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1680
2. For the 1st fraction, since 84 × 20 = 1680,
   28/84 = 28 × 20/84 × 20 = 560/1680
3. Likewise, for the 2nd fraction, since 80 × 21 = 1680,
   30/80 = 30 × 21/80 × 21 = 630/1680
4. Add the two like fractions:
   560/1680 + 630/1680 = 560 + 630/1680 = 1190/1680
5. 1190/1680 simplified gives 17/24
6. So, 28/84 + 30/80 = 17/24

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