Answers

Add 45/72 and 72/30

1^st number: 45/72, 2^nd number: 2 12/30

45/72 + 72/30 is 121/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 30 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 72 × 5 = 360,
   45/72 = 45 × 5/72 × 5 = 225/360
3. Likewise, for the 2nd fraction, since 30 × 12 = 360,
   72/30 = 72 × 12/30 × 12 = 864/360
4. Add the two like fractions:
   225/360 + 864/360 = 225 + 864/360 = 1089/360
5. 1089/360 simplified gives 121/40
6. So, 45/72 + 72/30 = 121/40
   In mixed form: 31/40

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