Answers

Add 64/5 and 70/72

1^st number: 12 4/5, 2^nd number: 70/72

64/5 + 70/72 is 2479/180.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 72 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 5 × 72 = 360,
   64/5 = 64 × 72/5 × 72 = 4608/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   70/72 = 70 × 5/72 × 5 = 350/360
4. Add the two like fractions:
   4608/360 + 350/360 = 4608 + 350/360 = 4958/360
5. 4958/360 simplified gives 2479/180
6. So, 64/5 + 70/72 = 2479/180
   In mixed form: 13139/180

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