Answers

Add 40/60 and 90/72

1^st number: 40/60, 2^nd number: 1 18/72

40/60 + 90/72 is 23/12.

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,
   40/60 = 40 × 6/60 × 6 = 240/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   90/72 = 90 × 5/72 × 5 = 450/360
4. Add the two like fractions:
   240/360 + 450/360 = 240 + 450/360 = 690/360
5. 690/360 simplified gives 23/12
6. So, 40/60 + 90/72 = 23/12
   In mixed form: 111/12

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