Answers

Add 90/50 and 75/21

1^st number: 1 40/50, 2^nd number: 3 12/21

90/50 + 75/21 is 188/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 21 is 1050
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1050
2. For the 1st fraction, since 50 × 21 = 1050,
   90/50 = 90 × 21/50 × 21 = 1890/1050
3. Likewise, for the 2nd fraction, since 21 × 50 = 1050,
   75/21 = 75 × 50/21 × 50 = 3750/1050
4. Add the two like fractions:
   1890/1050 + 3750/1050 = 1890 + 3750/1050 = 5640/1050
5. 5640/1050 simplified gives 188/35
6. So, 90/50 + 75/21 = 188/35
   In mixed form: 513/35

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