Answers

Add 27/21 and 54/5

1^st number: 1 6/21, 2^nd number: 10 4/5

27/21 + 54/5 is 423/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 5 is 105
   
   Next, find the equivalent fraction of both fractional numbers with denominator 105
2. For the 1st fraction, since 21 × 5 = 105,
   27/21 = 27 × 5/21 × 5 = 135/105
3. Likewise, for the 2nd fraction, since 5 × 21 = 105,
   54/5 = 54 × 21/5 × 21 = 1134/105
4. Add the two like fractions:
   135/105 + 1134/105 = 135 + 1134/105 = 1269/105
5. 1269/105 simplified gives 423/35
6. So, 27/21 + 54/5 = 423/35
   In mixed form: 123/35

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