Add 9/40 and 98/63, Solve 9/40 + 1 35/63 as a fraction

Add 9/40 and 98/63

1^st number: 9/40, 2^nd number: 1 35/63

9/40 + 98/63 is 641/360.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 63 is 2520

Next, find the equivalent fraction of both fractional numbers with denominator 2520
For the 1st fraction, since 40 × 63 = 2520,
9/40 = 9 × 63/40 × 63 = 567/2520
Likewise, for the 2nd fraction, since 63 × 40 = 2520,
98/63 = 98 × 40/63 × 40 = 3920/2520
Add the two like fractions:
567/2520 + 3920/2520 = 567 + 3920/2520 = 4487/2520
4487/2520 simplified gives 641/360
So, 9/40 + 98/63 = 641/360
In mixed form: 1281/360

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