Answers

Add 72/45 and 70/35

1^st number: 1 27/45, 2^nd number: 2 0/35

72/45 + 70/35 is 18/5.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 35 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 45 × 7 = 315,
   72/45 = 72 × 7/45 × 7 = 504/315
3. Likewise, for the 2nd fraction, since 35 × 9 = 315,
   70/35 = 70 × 9/35 × 9 = 630/315
4. Add the two like fractions:
   504/315 + 630/315 = 504 + 630/315 = 1134/315
5. 1134/315 simplified gives 18/5
6. So, 72/45 + 70/35 = 18/5
   In mixed form: 33/5

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