Answers

Add 40/60 and 63/80

40/60 + 63/80 is 349/240.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 80 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 60 × 4 = 240,
   40/60 = 40 × 4/60 × 4 = 160/240
3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
   63/80 = 63 × 3/80 × 3 = 189/240
4. Add the two like fractions:
   160/240 + 189/240 = 160 + 189/240 = 349/240
5. So, 40/60 + 63/80 = 349/240
   In mixed form: 1109/240

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