Answers

Add 18/60 and 35/28

1^st number: 18/60, 2^nd number: 1 7/28

18/60 + 35/28 is 31/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 28 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 60 × 7 = 420,
   18/60 = 18 × 7/60 × 7 = 126/420
3. Likewise, for the 2nd fraction, since 28 × 15 = 420,
   35/28 = 35 × 15/28 × 15 = 525/420
4. Add the two like fractions:
   126/420 + 525/420 = 126 + 525/420 = 651/420
5. 651/420 simplified gives 31/20
6. So, 18/60 + 35/28 = 31/20
   In mixed form: 111/20

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