Answers

Add 70/72 and 45/28

1^st number: 70/72, 2^nd number: 1 17/28

70/72 + 45/28 is 325/126.

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,
   45/28 = 45 × 18/28 × 18 = 810/504
4. Add the two like fractions:
   490/504 + 810/504 = 490 + 810/504 = 1300/504
5. 1300/504 simplified gives 325/126
6. So, 70/72 + 45/28 = 325/126
   In mixed form: 273/126

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