Add 60/40 and 28/42, Solve 1 20/40 + 28/42 as a fraction

Add 60/40 and 28/42

1^st number: 1 20/40, 2^nd number: 28/42

60/40 + 28/42 is 13/6.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 42 is 840

Next, find the equivalent fraction of both fractional numbers with denominator 840
For the 1st fraction, since 40 × 21 = 840,
60/40 = 60 × 21/40 × 21 = 1260/840
Likewise, for the 2nd fraction, since 42 × 20 = 840,
28/42 = 28 × 20/42 × 20 = 560/840
Add the two like fractions:
1260/840 + 560/840 = 1260 + 560/840 = 1820/840
1820/840 simplified gives 13/6
So, 60/40 + 28/42 = 13/6
In mixed form: 21/6

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