Answers

Add 60/21 and 6/90

1^st number: 2 18/21, 2^nd number: 6/90

60/21 + 6/90 is 307/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 21 × 30 = 630,
   60/21 = 60 × 30/21 × 30 = 1800/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   6/90 = 6 × 7/90 × 7 = 42/630
4. Add the two like fractions:
   1800/630 + 42/630 = 1800 + 42/630 = 1842/630
5. 1842/630 simplified gives 307/105
6. So, 60/21 + 6/90 = 307/105
   In mixed form: 297/105

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