Answers

Add 21/2 and 49/40

1^st number: 10 1/2, 2^nd number: 1 9/40

21/2 + 49/40 is 469/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 2 and 40 is 40
   
   Next, find the equivalent fraction of both fractional numbers with denominator 40
2. For the 1st fraction, since 2 × 20 = 40,
   21/2 = 21 × 20/2 × 20 = 420/40
3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
   49/40 = 49 × 1/40 × 1 = 49/40
4. Add the two like fractions:
   420/40 + 49/40 = 420 + 49/40 = 469/40
5. So, 21/2 + 49/40 = 469/40
   In mixed form: 1129/40

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