Answers

Add 60/72 and 45/28

1^st number: 60/72, 2^nd number: 1 17/28

60/72 + 45/28 is 205/84.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 28 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 72 × 7 = 504,
   60/72 = 60 × 7/72 × 7 = 420/504
3. Likewise, for the 2nd fraction, since 28 × 18 = 504,
   45/28 = 45 × 18/28 × 18 = 810/504
4. Add the two like fractions:
   420/504 + 810/504 = 420 + 810/504 = 1230/504
5. 1230/504 simplified gives 205/84
6. So, 60/72 + 45/28 = 205/84
   In mixed form: 237/84

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