Answers

Add 54/28 and 21/60

1^st number: 1 26/28, 2^nd number: 21/60

54/28 + 21/60 is 319/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 60 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 28 × 15 = 420,
   54/28 = 54 × 15/28 × 15 = 810/420
3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
   21/60 = 21 × 7/60 × 7 = 147/420
4. Add the two like fractions:
   810/420 + 147/420 = 810 + 147/420 = 957/420
5. 957/420 simplified gives 319/140
6. So, 54/28 + 21/60 = 319/140
   In mixed form: 239/140

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