Add 75/54 and 15/63, Solve 1 21/54 + 15/63 as a fraction

Add 75/54 and 15/63

1^st number: 1 21/54, 2^nd number: 15/63

75/54 + 15/63 is 205/126.

Find the least common denominator or LCM of the two denominators:
LCM of 54 and 63 is 378

Next, find the equivalent fraction of both fractional numbers with denominator 378
For the 1st fraction, since 54 × 7 = 378,
75/54 = 75 × 7/54 × 7 = 525/378
Likewise, for the 2nd fraction, since 63 × 6 = 378,
15/63 = 15 × 6/63 × 6 = 90/378
Add the two like fractions:
525/378 + 90/378 = 525 + 90/378 = 615/378
615/378 simplified gives 205/126
So, 75/54 + 15/63 = 205/126
In mixed form: 179/126

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