Answers

Add 90/42 and 70/72

1^st number: 2 6/42, 2^nd number: 70/72

90/42 + 70/72 is 785/252.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 42 × 12 = 504,
   90/42 = 90 × 12/42 × 12 = 1080/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   70/72 = 70 × 7/72 × 7 = 490/504
4. Add the two like fractions:
   1080/504 + 490/504 = 1080 + 490/504 = 1570/504
5. 1570/504 simplified gives 785/252
6. So, 90/42 + 70/72 = 785/252
   In mixed form: 329/252

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