Add 40/21 and 14/80, Solve 1 19/21 + 14/80 as a fraction

Add 40/21 and 14/80

1^st number: 1 19/21, 2^nd number: 14/80

40/21 + 14/80 is 1747/840.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 80 is 1680

Next, find the equivalent fraction of both fractional numbers with denominator 1680
For the 1st fraction, since 21 × 80 = 1680,
40/21 = 40 × 80/21 × 80 = 3200/1680
Likewise, for the 2nd fraction, since 80 × 21 = 1680,
14/80 = 14 × 21/80 × 21 = 294/1680
Add the two like fractions:
3200/1680 + 294/1680 = 3200 + 294/1680 = 3494/1680
3494/1680 simplified gives 1747/840
So, 40/21 + 14/80 = 1747/840
In mixed form: 267/840

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