Answers

Add 60/80 and 50/21

1^st number: 60/80, 2^nd number: 2 8/21

60/80 + 50/21 is 263/84.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 21 is 1680
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1680
2. For the 1st fraction, since 80 × 21 = 1680,
   60/80 = 60 × 21/80 × 21 = 1260/1680
3. Likewise, for the 2nd fraction, since 21 × 80 = 1680,
   50/21 = 50 × 80/21 × 80 = 4000/1680
4. Add the two like fractions:
   1260/1680 + 4000/1680 = 1260 + 4000/1680 = 5260/1680
5. 5260/1680 simplified gives 263/84
6. So, 60/80 + 50/21 = 263/84
   In mixed form: 311/84

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