Add 7/5 and 3/21, Solve 1 2/5 + 3/21 as a fraction

Add 7/5 and 3/21

1^st number: 1 2/5, 2^nd number: 3/21

7/5 + 3/21 is 54/35.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 21 is 105

Next, find the equivalent fraction of both fractional numbers with denominator 105
For the 1st fraction, since 5 × 21 = 105,
7/5 = 7 × 21/5 × 21 = 147/105
Likewise, for the 2nd fraction, since 21 × 5 = 105,
3/21 = 3 × 5/21 × 5 = 15/105
Add the two like fractions:
147/105 + 15/105 = 147 + 15/105 = 162/105
162/105 simplified gives 54/35
So, 7/5 + 3/21 = 54/35
In mixed form: 119/35

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