Answers

Add 21/45 and 54/4

1^st number: 21/45, 2^nd number: 13 2/4

21/45 + 54/4 is 419/30.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 4 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 45 × 4 = 180,
   21/45 = 21 × 4/45 × 4 = 84/180
3. Likewise, for the 2nd fraction, since 4 × 45 = 180,
   54/4 = 54 × 45/4 × 45 = 2430/180
4. Add the two like fractions:
   84/180 + 2430/180 = 84 + 2430/180 = 2514/180
5. 2514/180 simplified gives 419/30
6. So, 21/45 + 54/4 = 419/30
   In mixed form: 1329/30

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