Answers

Add 60/40 and 50/21

1^st number: 1 20/40, 2^nd number: 2 8/21

60/40 + 50/21 is 163/42.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 21 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 40 × 21 = 840,
   60/40 = 60 × 21/40 × 21 = 1260/840
3. Likewise, for the 2nd fraction, since 21 × 40 = 840,
   50/21 = 50 × 40/21 × 40 = 2000/840
4. Add the two like fractions:
   1260/840 + 2000/840 = 1260 + 2000/840 = 3260/840
5. 3260/840 simplified gives 163/42
6. So, 60/40 + 50/21 = 163/42
   In mixed form: 337/42

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