Answers

Add 72/10 and 75/45

1^st number: 7 2/10, 2^nd number: 1 30/45

72/10 + 75/45 is 133/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 45 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 10 × 9 = 90,
   72/10 = 72 × 9/10 × 9 = 648/90
3. Likewise, for the 2nd fraction, since 45 × 2 = 90,
   75/45 = 75 × 2/45 × 2 = 150/90
4. Add the two like fractions:
   648/90 + 150/90 = 648 + 150/90 = 798/90
5. 798/90 simplified gives 133/15
6. So, 72/10 + 75/45 = 133/15
   In mixed form: 813/15

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