Answers

Add 12/60 and 4/72

12/60 + 4/72 is 23/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 72 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 60 × 6 = 360,
   12/60 = 12 × 6/60 × 6 = 72/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   4/72 = 4 × 5/72 × 5 = 20/360
4. Add the two like fractions:
   72/360 + 20/360 = 72 + 20/360 = 92/360
5. 92/360 simplified gives 23/90
6. So, 12/60 + 4/72 = 23/90

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