Answers

Add 20/50 and 90/21

1^st number: 20/50, 2^nd number: 4 6/21

20/50 + 90/21 is 164/35.

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,
   20/50 = 20 × 21/50 × 21 = 420/1050
3. Likewise, for the 2nd fraction, since 21 × 50 = 1050,
   90/21 = 90 × 50/21 × 50 = 4500/1050
4. Add the two like fractions:
   420/1050 + 4500/1050 = 420 + 4500/1050 = 4920/1050
5. 4920/1050 simplified gives 164/35
6. So, 20/50 + 90/21 = 164/35
   In mixed form: 424/35

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