Answers

Add 90/7 and 60/90

1^st number: 12 6/7, 2^nd number: 60/90

90/7 + 60/90 is 284/21.

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,
   90/7 = 90 × 90/7 × 90 = 8100/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   60/90 = 60 × 7/90 × 7 = 420/630
4. Add the two like fractions:
   8100/630 + 420/630 = 8100 + 420/630 = 8520/630
5. 8520/630 simplified gives 284/21
6. So, 90/7 + 60/90 = 284/21
   In mixed form: 1311/21

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