Answers

Add 42/10 and 84/45

1^st number: 4 2/10, 2^nd number: 1 39/45

42/10 + 84/45 is 91/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 45 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 10 × 9 = 90,
   42/10 = 42 × 9/10 × 9 = 378/90
3. Likewise, for the 2nd fraction, since 45 × 2 = 90,
   84/45 = 84 × 2/45 × 2 = 168/90
4. Add the two like fractions:
   378/90 + 168/90 = 378 + 168/90 = 546/90
5. 546/90 simplified gives 91/15
6. So, 42/10 + 84/45 = 91/15
   In mixed form: 61/15

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