Answers

Add 27/90 and 54/7

1^st number: 27/90, 2^nd number: 7 5/7

27/90 + 54/7 is 561/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 7 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 90 × 7 = 630,
   27/90 = 27 × 7/90 × 7 = 189/630
3. Likewise, for the 2nd fraction, since 7 × 90 = 630,
   54/7 = 54 × 90/7 × 90 = 4860/630
4. Add the two like fractions:
   189/630 + 4860/630 = 189 + 4860/630 = 5049/630
5. 5049/630 simplified gives 561/70
6. So, 27/90 + 54/7 = 561/70
   In mixed form: 81/70

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