Answers

Add 20/84 and 24/40

20/84 + 24/40 is 88/105.

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,
   20/84 = 20 × 10/84 × 10 = 200/840
3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
   24/40 = 24 × 21/40 × 21 = 504/840
4. Add the two like fractions:
   200/840 + 504/840 = 200 + 504/840 = 704/840
5. 704/840 simplified gives 88/105
6. So, 20/84 + 24/40 = 88/105

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