Answers

Add 50/84 and 4/40

50/84 + 4/40 is 73/105.

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,
   50/84 = 50 × 10/84 × 10 = 500/840
3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
   4/40 = 4 × 21/40 × 21 = 84/840
4. Add the two like fractions:
   500/840 + 84/840 = 500 + 84/840 = 584/840
5. 584/840 simplified gives 73/105
6. So, 50/84 + 4/40 = 73/105

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