Answers

Add 42/20 and 24/45

1^st number: 2 2/20, 2^nd number: 24/45

42/20 + 24/45 is 79/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 45 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 20 × 9 = 180,
   42/20 = 42 × 9/20 × 9 = 378/180
3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
   24/45 = 24 × 4/45 × 4 = 96/180
4. Add the two like fractions:
   378/180 + 96/180 = 378 + 96/180 = 474/180
5. 474/180 simplified gives 79/30
6. So, 42/20 + 24/45 = 79/30
   In mixed form: 219/30

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