Solutions by everydaycalculation.com

170 + 2198 is 835.

- Find the least common denominator or LCM of the two denominators:

LCM of 70 and 98 is**490**

Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 70 × 7 = 490,

170 = 1 × 770 × 7 = 7490 - Likewise, for the 2nd fraction, since 98 × 5 = 490,

2198 = 21 × 598 × 5 = 105490 - Add the two like fractions:

7490 + 105490 = 7 + 105490 = 112490 - 112/490 simplified gives 835
- So, 1/70 + 21/98 = 8/35

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