Add 63/40 and 20/84, Solve 1 23/40 + 20/84 as a fraction

Add 63/40 and 20/84

1^st number: 1 23/40, 2^nd number: 20/84

63/40 + 20/84 is 1523/840.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 84 is 840

Next, find the equivalent fraction of both fractional numbers with denominator 840
For the 1st fraction, since 40 × 21 = 840,
63/40 = 63 × 21/40 × 21 = 1323/840
Likewise, for the 2nd fraction, since 84 × 10 = 840,
20/84 = 20 × 10/84 × 10 = 200/840
Add the two like fractions:
1323/840 + 200/840 = 1323 + 200/840 = 1523/840
So, 63/40 + 20/84 = 1523/840
In mixed form: 1683/840

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