Answers

Add 63/80 and 25/42

63/80 + 25/42 is 2323/1680.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 42 is 1680
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1680
2. For the 1st fraction, since 80 × 21 = 1680,
   63/80 = 63 × 21/80 × 21 = 1323/1680
3. Likewise, for the 2nd fraction, since 42 × 40 = 1680,
   25/42 = 25 × 40/42 × 40 = 1000/1680
4. Add the two like fractions:
   1323/1680 + 1000/1680 = 1323 + 1000/1680 = 2323/1680
5. So, 63/80 + 25/42 = 2323/1680
   In mixed form: 1643/1680

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