Add 63/42 and 40/49, Solve 1 21/42 + 40/49 as a fraction

Add 63/42 and 40/49

1^st number: 1 21/42, 2^nd number: 40/49

63/42 + 40/49 is 227/98.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 49 is 294

Next, find the equivalent fraction of both fractional numbers with denominator 294
For the 1st fraction, since 42 × 7 = 294,
63/42 = 63 × 7/42 × 7 = 441/294
Likewise, for the 2nd fraction, since 49 × 6 = 294,
40/49 = 40 × 6/49 × 6 = 240/294
Add the two like fractions:
441/294 + 240/294 = 441 + 240/294 = 681/294
681/294 simplified gives 227/98
So, 63/42 + 40/49 = 227/98
In mixed form: 231/98

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