Answers

Add 40/84 and 27/72

40/84 + 27/72 is 143/168.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 84 × 6 = 504,
   40/84 = 40 × 6/84 × 6 = 240/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   27/72 = 27 × 7/72 × 7 = 189/504
4. Add the two like fractions:
   240/504 + 189/504 = 240 + 189/504 = 429/504
5. 429/504 simplified gives 143/168
6. So, 40/84 + 27/72 = 143/168

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