Answers

Add 70/72 and 40/28

1^st number: 70/72, 2^nd number: 1 12/28

70/72 + 40/28 is 605/252.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 28 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 72 × 7 = 504,
   70/72 = 70 × 7/72 × 7 = 490/504
3. Likewise, for the 2nd fraction, since 28 × 18 = 504,
   40/28 = 40 × 18/28 × 18 = 720/504
4. Add the two like fractions:
   490/504 + 720/504 = 490 + 720/504 = 1210/504
5. 1210/504 simplified gives 605/252
6. So, 70/72 + 40/28 = 605/252
   In mixed form: 2101/252

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