Answers

Add 42/7 and 54/90

1^st number: 6 0/7, 2^nd number: 54/90

42/7 + 54/90 is 33/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 7 × 90 = 630,
   42/7 = 42 × 90/7 × 90 = 3780/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   54/90 = 54 × 7/90 × 7 = 378/630
4. Add the two like fractions:
   3780/630 + 378/630 = 3780 + 378/630 = 4158/630
5. 4158/630 simplified gives 33/5
6. So, 42/7 + 54/90 = 33/5
   In mixed form: 63/5

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