Answers

Add 50/84 and 90/45

1^st number: 50/84, 2^nd number: 2 0/45

50/84 + 90/45 is 109/42.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 45 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 84 × 15 = 1260,
   50/84 = 50 × 15/84 × 15 = 750/1260
3. Likewise, for the 2nd fraction, since 45 × 28 = 1260,
   90/45 = 90 × 28/45 × 28 = 2520/1260
4. Add the two like fractions:
   750/1260 + 2520/1260 = 750 + 2520/1260 = 3270/1260
5. 3270/1260 simplified gives 109/42
6. So, 50/84 + 90/45 = 109/42
   In mixed form: 225/42

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