Answers

Add 9/72 and 72/60

1^st number: 9/72, 2^nd number: 1 12/60

9/72 + 72/60 is 53/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 60 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 72 × 5 = 360,
   9/72 = 9 × 5/72 × 5 = 45/360
3. Likewise, for the 2nd fraction, since 60 × 6 = 360,
   72/60 = 72 × 6/60 × 6 = 432/360
4. Add the two like fractions:
   45/360 + 432/360 = 45 + 432/360 = 477/360
5. 477/360 simplified gives 53/40
6. So, 9/72 + 72/60 = 53/40
   In mixed form: 113/40

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