Add 21/98 and 80/60, Solve 21/98 + 1 20/60 as a fraction

Add 21/98 and 80/60

1^st number: 21/98, 2^nd number: 1 20/60

21/98 + 80/60 is 65/42.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 60 is 2940

Next, find the equivalent fraction of both fractional numbers with denominator 2940
For the 1st fraction, since 98 × 30 = 2940,
21/98 = 21 × 30/98 × 30 = 630/2940
Likewise, for the 2nd fraction, since 60 × 49 = 2940,
80/60 = 80 × 49/60 × 49 = 3920/2940
Add the two like fractions:
630/2940 + 3920/2940 = 630 + 3920/2940 = 4550/2940
4550/2940 simplified gives 65/42
So, 21/98 + 80/60 = 65/42
In mixed form: 123/42

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