Answers

Add 60/15 and 20/80

1^st number: 4 0/15, 2^nd number: 20/80

60/15 + 20/80 is 17/4.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 80 is 240
   
   Next, find the equivalent fraction of both fractional numbers with denominator 240
2. For the 1st fraction, since 15 × 16 = 240,
   60/15 = 60 × 16/15 × 16 = 960/240
3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
   20/80 = 20 × 3/80 × 3 = 60/240
4. Add the two like fractions:
   960/240 + 60/240 = 960 + 60/240 = 1020/240
5. 1020/240 simplified gives 17/4
6. So, 60/15 + 20/80 = 17/4
   In mixed form: 41/4

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