Add 81/98 and 63/40, Solve 81/98 + 1 23/40 as a fraction

Add 81/98 and 63/40

1^st number: 81/98, 2^nd number: 1 23/40

81/98 + 63/40 is 4707/1960.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 40 is 1960

Next, find the equivalent fraction of both fractional numbers with denominator 1960
For the 1st fraction, since 98 × 20 = 1960,
81/98 = 81 × 20/98 × 20 = 1620/1960
Likewise, for the 2nd fraction, since 40 × 49 = 1960,
63/40 = 63 × 49/40 × 49 = 3087/1960
Add the two like fractions:
1620/1960 + 3087/1960 = 1620 + 3087/1960 = 4707/1960
So, 81/98 + 63/40 = 4707/1960
In mixed form: 2787/1960

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