Answers

Add 21/45 and 25/18

1^st number: 21/45, 2^nd number: 1 7/18

21/45 + 25/18 is 167/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 18 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 45 × 2 = 90,
   21/45 = 21 × 2/45 × 2 = 42/90
3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
   25/18 = 25 × 5/18 × 5 = 125/90
4. Add the two like fractions:
   42/90 + 125/90 = 42 + 125/90 = 167/90
5. So, 21/45 + 25/18 = 167/90
   In mixed form: 177/90

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