Add 27/21 and 63/35, Solve 1 6/21 + 1 28/35 as a fraction

Add 27/21 and 63/35

1^st number: 1 6/21, 2^nd number: 1 28/35

27/21 + 63/35 is 108/35.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 35 is 105

Next, find the equivalent fraction of both fractional numbers with denominator 105
For the 1st fraction, since 21 × 5 = 105,
27/21 = 27 × 5/21 × 5 = 135/105
Likewise, for the 2nd fraction, since 35 × 3 = 105,
63/35 = 63 × 3/35 × 3 = 189/105
Add the two like fractions:
135/105 + 189/105 = 135 + 189/105 = 324/105
324/105 simplified gives 108/35
So, 27/21 + 63/35 = 108/35
In mixed form: 33/35

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