Add 84/98 and 20/70
84/98 + 20/70 is 8/7.
Steps for adding fractions
- 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 - For the 1st fraction, since 98 × 5 = 490,
84/98 = 84 × 5/98 × 5 = 420/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
20/70 = 20 × 7/70 × 7 = 140/490 - Add the two like fractions:
420/490 + 140/490 = 420 + 140/490 = 560/490 - 560/490 simplified gives 8/7
- So, 84/98 + 20/70 = 8/7
In mixed form: 11/7
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