Add 28/30 and 98/21, Solve 28/30 + 4 14/21 as a fraction

Add 28/30 and 98/21

1^st number: 28/30, 2^nd number: 4 14/21

28/30 + 98/21 is 28/5.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 21 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 30 × 7 = 210,
28/30 = 28 × 7/30 × 7 = 196/210
Likewise, for the 2nd fraction, since 21 × 10 = 210,
98/21 = 98 × 10/21 × 10 = 980/210
Add the two like fractions:
196/210 + 980/210 = 196 + 980/210 = 1176/210
1176/210 simplified gives 28/5
So, 28/30 + 98/21 = 28/5
In mixed form: 53/5

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