Answers

Add 70/28 and 98/72

1^st number: 2 14/28, 2^nd number: 1 26/72

70/28 + 98/72 is 139/36.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 28 × 18 = 504,
   70/28 = 70 × 18/28 × 18 = 1260/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   98/72 = 98 × 7/72 × 7 = 686/504
4. Add the two like fractions:
   1260/504 + 686/504 = 1260 + 686/504 = 1946/504
5. 1946/504 simplified gives 139/36
6. So, 70/28 + 98/72 = 139/36
   In mixed form: 331/36

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