Add 28/70 and 98/21, Solve 28/70 + 4 14/21 as a fraction

Add 28/70 and 98/21

1^st number: 28/70, 2^nd number: 4 14/21

28/70 + 98/21 is 76/15.

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

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 70 × 3 = 210,
28/70 = 28 × 3/70 × 3 = 84/210
Likewise, for the 2nd fraction, since 21 × 10 = 210,
98/21 = 98 × 10/21 × 10 = 980/210
Add the two like fractions:
84/210 + 980/210 = 84 + 980/210 = 1064/210
1064/210 simplified gives 76/15
So, 28/70 + 98/21 = 76/15
In mixed form: 51/15

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