Answers

Add 40/50 and 54/21

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

40/50 + 54/21 is 118/35.

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,
   40/50 = 40 × 21/50 × 21 = 840/1050
3. Likewise, for the 2nd fraction, since 21 × 50 = 1050,
   54/21 = 54 × 50/21 × 50 = 2700/1050
4. Add the two like fractions:
   840/1050 + 2700/1050 = 840 + 2700/1050 = 3540/1050
5. 3540/1050 simplified gives 118/35
6. So, 40/50 + 54/21 = 118/35
   In mixed form: 313/35

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