Answers

Add 70/98 and 20/70

70/98 + 20/70 is 1/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 70 is 490
   
   Next, find the equivalent fraction of both fractional numbers with denominator 490
2. For the 1st fraction, since 98 × 5 = 490,
   70/98 = 70 × 5/98 × 5 = 350/490
3. Likewise, for the 2nd fraction, since 70 × 7 = 490,
   20/70 = 20 × 7/70 × 7 = 140/490
4. Add the two like fractions:
   350/490 + 140/490 = 350 + 140/490 = 490/490
5. 490/490 simplified gives 1/1
6. So, 70/98 + 20/70 = 1/1

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