Add 75/18 and 7/21, Solve 4 3/18 + 7/21 as a fraction

Add 75/18 and 7/21

1^st number: 4 3/18, 2^nd number: 7/21

75/18 + 7/21 is 9/2.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 21 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 18 × 7 = 126,
75/18 = 75 × 7/18 × 7 = 525/126
Likewise, for the 2nd fraction, since 21 × 6 = 126,
7/21 = 7 × 6/21 × 6 = 42/126
Add the two like fractions:
525/126 + 42/126 = 525 + 42/126 = 567/126
567/126 simplified gives 9/2
So, 75/18 + 7/21 = 9/2
In mixed form: 41/2

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