Add 14/10 and 90/21, Solve 1 4/10 + 4 6/21 as a fraction

Add 14/10 and 90/21

1^st number: 1 4/10, 2^nd number: 4 6/21

14/10 + 90/21 is 199/35.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 21 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 10 × 21 = 210,
14/10 = 14 × 21/10 × 21 = 294/210
Likewise, for the 2nd fraction, since 21 × 10 = 210,
90/21 = 90 × 10/21 × 10 = 900/210
Add the two like fractions:
294/210 + 900/210 = 294 + 900/210 = 1194/210
1194/210 simplified gives 199/35
So, 14/10 + 90/21 = 199/35
In mixed form: 524/35

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