Add 70/21 and 32/70, Solve 3 7/21 + 32/70 as a fraction

Add 70/21 and 32/70

1^st number: 3 7/21, 2^nd number: 32/70

70/21 + 32/70 is 398/105.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 70 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 21 × 10 = 210,
70/21 = 70 × 10/21 × 10 = 700/210
Likewise, for the 2nd fraction, since 70 × 3 = 210,
32/70 = 32 × 3/70 × 3 = 96/210
Add the two like fractions:
700/210 + 96/210 = 700 + 96/210 = 796/210
796/210 simplified gives 398/105
So, 70/21 + 32/70 = 398/105
In mixed form: 383/105

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