Add 3/35 and 72/21, Solve 3/35 + 3 9/21 as a fraction

Add 3/35 and 72/21

1^st number: 3/35, 2^nd number: 3 9/21

3/35 + 72/21 is 123/35.

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

Next, find the equivalent fraction of both fractional numbers with denominator 105
For the 1st fraction, since 35 × 3 = 105,
3/35 = 3 × 3/35 × 3 = 9/105
Likewise, for the 2nd fraction, since 21 × 5 = 105,
72/21 = 72 × 5/21 × 5 = 360/105
Add the two like fractions:
9/105 + 360/105 = 9 + 360/105 = 369/105
369/105 simplified gives 123/35
So, 3/35 + 72/21 = 123/35
In mixed form: 318/35

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