Add 60/40 and 54/84, Solve 1 20/40 + 54/84 as a fraction

Add 60/40 and 54/84

1^st number: 1 20/40, 2^nd number: 54/84

60/40 + 54/84 is 15/7.

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,
60/40 = 60 × 21/40 × 21 = 1260/840
Likewise, for the 2nd fraction, since 84 × 10 = 840,
54/84 = 54 × 10/84 × 10 = 540/840
Add the two like fractions:
1260/840 + 540/840 = 1260 + 540/840 = 1800/840
1800/840 simplified gives 15/7
So, 60/40 + 54/84 = 15/7
In mixed form: 21/7

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