Answers

Add 50/84 and 28/90

50/84 + 28/90 is 571/630.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 90 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 90 × 14 = 1260,
   28/90 = 28 × 14/90 × 14 = 392/1260
4. Add the two like fractions:
   750/1260 + 392/1260 = 750 + 392/1260 = 1142/1260
5. 1142/1260 simplified gives 571/630
6. So, 50/84 + 28/90 = 571/630

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