Answers

Add 14/42 and 8/40

14/42 + 8/40 is 8/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 40 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 42 × 20 = 840,
   14/42 = 14 × 20/42 × 20 = 280/840
3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
   8/40 = 8 × 21/40 × 21 = 168/840
4. Add the two like fractions:
   280/840 + 168/840 = 280 + 168/840 = 448/840
5. 448/840 simplified gives 8/15
6. So, 14/42 + 8/40 = 8/15

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