Answers

Add 72/90 and 90/60

1^st number: 72/90, 2^nd number: 1 30/60

72/90 + 90/60 is 23/10.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 60 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 90 × 2 = 180,
   72/90 = 72 × 2/90 × 2 = 144/180
3. Likewise, for the 2nd fraction, since 60 × 3 = 180,
   90/60 = 90 × 3/60 × 3 = 270/180
4. Add the two like fractions:
   144/180 + 270/180 = 144 + 270/180 = 414/180
5. 414/180 simplified gives 23/10
6. So, 72/90 + 90/60 = 23/10
   In mixed form: 23/10

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