Answers

Add 72/10 and 40/72

1^st number: 7 2/10, 2^nd number: 40/72

72/10 + 40/72 is 349/45.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 72 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 10 × 36 = 360,
   72/10 = 72 × 36/10 × 36 = 2592/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   40/72 = 40 × 5/72 × 5 = 200/360
4. Add the two like fractions:
   2592/360 + 200/360 = 2592 + 200/360 = 2792/360
5. 2792/360 simplified gives 349/45
6. So, 72/10 + 40/72 = 349/45
   In mixed form: 734/45

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