Answers

Add 1/90 and 56/21

1^st number: 1/90, 2^nd number: 2 14/21

1/90 + 56/21 is 241/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 21 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 90 × 7 = 630,
   1/90 = 1 × 7/90 × 7 = 7/630
3. Likewise, for the 2nd fraction, since 21 × 30 = 630,
   56/21 = 56 × 30/21 × 30 = 1680/630
4. Add the two like fractions:
   7/630 + 1680/630 = 7 + 1680/630 = 1687/630
5. 1687/630 simplified gives 241/90
6. So, 1/90 + 56/21 = 241/90
   In mixed form: 261/90

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