Answers

Add 21/4 and 8/45

1^st number: 5 1/4, 2^nd number: 8/45

21/4 + 8/45 is 977/180.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 45 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 4 × 45 = 180,
   21/4 = 21 × 45/4 × 45 = 945/180
3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
   8/45 = 8 × 4/45 × 4 = 32/180
4. Add the two like fractions:
   945/180 + 32/180 = 945 + 32/180 = 977/180
5. So, 21/4 + 8/45 = 977/180
   In mixed form: 577/180

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