Add 54/70 and 40/84, Solve 54/70 + 40/84 as a fraction

Add 54/70 and 40/84

54/70 + 40/84 is 131/105.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 84 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 70 × 6 = 420,
54/70 = 54 × 6/70 × 6 = 324/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
40/84 = 40 × 5/84 × 5 = 200/420
Add the two like fractions:
324/420 + 200/420 = 324 + 200/420 = 524/420
524/420 simplified gives 131/105
So, 54/70 + 40/84 = 131/105
In mixed form: 126/105

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