Add 84/40 and 75/63, Solve 2 4/40 + 1 12/63 as a fraction

Add 84/40 and 75/63

1^st number: 2 4/40, 2^nd number: 1 12/63

84/40 + 75/63 is 691/210.

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,
84/40 = 84 × 63/40 × 63 = 5292/2520
Likewise, for the 2nd fraction, since 63 × 40 = 2520,
75/63 = 75 × 40/63 × 40 = 3000/2520
Add the two like fractions:
5292/2520 + 3000/2520 = 5292 + 3000/2520 = 8292/2520
8292/2520 simplified gives 691/210
So, 84/40 + 75/63 = 691/210
In mixed form: 361/210

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