Add 21/98 and 56/70, Solve 21/98 + 56/70 as a fraction

Add 21/98 and 56/70

21/98 + 56/70 is 71/70.

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,
21/98 = 21 × 5/98 × 5 = 105/490
Likewise, for the 2nd fraction, since 70 × 7 = 490,
56/70 = 56 × 7/70 × 7 = 392/490
Add the two like fractions:
105/490 + 392/490 = 105 + 392/490 = 497/490
497/490 simplified gives 71/70
So, 21/98 + 56/70 = 71/70
In mixed form: 11/70

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