Add 40/84 and 90/72, Solve 40/84 + 1 18/72 as a fraction

Add 40/84 and 90/72

1^st number: 40/84, 2^nd number: 1 18/72

40/84 + 90/72 is 145/84.

Find the least common denominator or LCM of the two denominators:
LCM of 84 and 72 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 84 × 6 = 504,
40/84 = 40 × 6/84 × 6 = 240/504
Likewise, for the 2nd fraction, since 72 × 7 = 504,
90/72 = 90 × 7/72 × 7 = 630/504
Add the two like fractions:
240/504 + 630/504 = 240 + 630/504 = 870/504
870/504 simplified gives 145/84
So, 40/84 + 90/72 = 145/84
In mixed form: 161/84

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