Answers

Add 42/20 and 40/45

1^st number: 2 2/20, 2^nd number: 40/45

42/20 + 40/45 is 269/90.

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,
   40/45 = 40 × 4/45 × 4 = 160/180
4. Add the two like fractions:
   378/180 + 160/180 = 378 + 160/180 = 538/180
5. 538/180 simplified gives 269/90
6. So, 42/20 + 40/45 = 269/90
   In mixed form: 289/90

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