Answers

Add 42/45 and 49/20

1^st number: 42/45, 2^nd number: 2 9/20

42/45 + 49/20 is 203/60.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 20 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 45 × 4 = 180,
   42/45 = 42 × 4/45 × 4 = 168/180
3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
   49/20 = 49 × 9/20 × 9 = 441/180
4. Add the two like fractions:
   168/180 + 441/180 = 168 + 441/180 = 609/180
5. 609/180 simplified gives 203/60
6. So, 42/45 + 49/20 = 203/60
   In mixed form: 323/60

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