Add 45/42 and 9/72, Solve 1 3/42 + 9/72 as a fraction

Add 45/42 and 9/72

1^st number: 1 3/42, 2^nd number: 9/72

45/42 + 9/72 is 67/56.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 72 is 504

Next, find the equivalent fraction of both fractional numbers with denominator 504
For the 1st fraction, since 42 × 12 = 504,
45/42 = 45 × 12/42 × 12 = 540/504
Likewise, for the 2nd fraction, since 72 × 7 = 504,
9/72 = 9 × 7/72 × 7 = 63/504
Add the two like fractions:
540/504 + 63/504 = 540 + 63/504 = 603/504
603/504 simplified gives 67/56
So, 45/42 + 9/72 = 67/56
In mixed form: 111/56

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