Add 81/98 and 45/70, Solve 81/98 + 45/70 as a fraction

Add 81/98 and 45/70

81/98 + 45/70 is 72/49.

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,
81/98 = 81 × 5/98 × 5 = 405/490
Likewise, for the 2nd fraction, since 70 × 7 = 490,
45/70 = 45 × 7/70 × 7 = 315/490
Add the two like fractions:
405/490 + 315/490 = 405 + 315/490 = 720/490
720/490 simplified gives 72/49
So, 81/98 + 45/70 = 72/49
In mixed form: 123/49

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