Add 54/80 and 50/42, Solve 54/80 + 1 8/42 as a fraction

Add 54/80 and 50/42

1^st number: 54/80, 2^nd number: 1 8/42

54/80 + 50/42 is 1567/840.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 42 is 1680

Next, find the equivalent fraction of both fractional numbers with denominator 1680
For the 1st fraction, since 80 × 21 = 1680,
54/80 = 54 × 21/80 × 21 = 1134/1680
Likewise, for the 2nd fraction, since 42 × 40 = 1680,
50/42 = 50 × 40/42 × 40 = 2000/1680
Add the two like fractions:
1134/1680 + 2000/1680 = 1134 + 2000/1680 = 3134/1680
3134/1680 simplified gives 1567/840
So, 54/80 + 50/42 = 1567/840
In mixed form: 1727/840

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