Answers

Add 70/84 and 90/49

1^st number: 70/84, 2^nd number: 1 41/49

70/84 + 90/49 is 785/294.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 49 is 588
   
   Next, find the equivalent fraction of both fractional numbers with denominator 588
2. For the 1st fraction, since 84 × 7 = 588,
   70/84 = 70 × 7/84 × 7 = 490/588
3. Likewise, for the 2nd fraction, since 49 × 12 = 588,
   90/49 = 90 × 12/49 × 12 = 1080/588
4. Add the two like fractions:
   490/588 + 1080/588 = 490 + 1080/588 = 1570/588
5. 1570/588 simplified gives 785/294
6. So, 70/84 + 90/49 = 785/294
   In mixed form: 2197/294

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