Add 56/84 and 90/72, Solve 56/84 + 1 18/72 as a fraction

Add 56/84 and 90/72

1^st number: 56/84, 2^nd number: 1 18/72

56/84 + 90/72 is 23/12.

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,
56/84 = 56 × 6/84 × 6 = 336/504
Likewise, for the 2nd fraction, since 72 × 7 = 504,
90/72 = 90 × 7/72 × 7 = 630/504
Add the two like fractions:
336/504 + 630/504 = 336 + 630/504 = 966/504
966/504 simplified gives 23/12
So, 56/84 + 90/72 = 23/12
In mixed form: 111/12

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