Answers

Add 27/72 and 81/60

1^st number: 27/72, 2^nd number: 1 21/60

27/72 + 81/60 is 69/40.

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,
   27/72 = 27 × 5/72 × 5 = 135/360
3. Likewise, for the 2nd fraction, since 60 × 6 = 360,
   81/60 = 81 × 6/60 × 6 = 486/360
4. Add the two like fractions:
   135/360 + 486/360 = 135 + 486/360 = 621/360
5. 621/360 simplified gives 69/40
6. So, 27/72 + 81/60 = 69/40
   In mixed form: 129/40

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