Answers

Add 10/54 and 21/60

10/54 + 21/60 is 289/540.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 60 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 54 × 10 = 540,
   10/54 = 10 × 10/54 × 10 = 100/540
3. Likewise, for the 2nd fraction, since 60 × 9 = 540,
   21/60 = 21 × 9/60 × 9 = 189/540
4. Add the two like fractions:
   100/540 + 189/540 = 100 + 189/540 = 289/540
5. So, 10/54 + 21/60 = 289/540

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