Answers

Add 21/60 and 30/27

1^st number: 21/60, 2^nd number: 1 3/27

21/60 + 30/27 is 263/180.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 27 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 60 × 9 = 540,
   21/60 = 21 × 9/60 × 9 = 189/540
3. Likewise, for the 2nd fraction, since 27 × 20 = 540,
   30/27 = 30 × 20/27 × 20 = 600/540
4. Add the two like fractions:
   189/540 + 600/540 = 189 + 600/540 = 789/540
5. 789/540 simplified gives 263/180
6. So, 21/60 + 30/27 = 263/180
   In mixed form: 183/180

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