Answers

Add 50/20 and 30/40

1^st number: 2 10/20, 2^nd number: 30/40

50/20 + 30/40 is 13/4.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 40 is 40
   
   Next, find the equivalent fraction of both fractional numbers with denominator 40
2. For the 1st fraction, since 20 × 2 = 40,
   50/20 = 50 × 2/20 × 2 = 100/40
3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
   30/40 = 30 × 1/40 × 1 = 30/40
4. Add the two like fractions:
   100/40 + 30/40 = 100 + 30/40 = 130/40
5. 130/40 simplified gives 13/4
6. So, 50/20 + 30/40 = 13/4
   In mixed form: 31/4

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