Add 90/15 and 10/21, Solve 6 0/15 + 10/21 as a fraction

Add 90/15 and 10/21

1^st number: 6 0/15, 2^nd number: 10/21

90/15 + 10/21 is 136/21.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 21 is 105

Next, find the equivalent fraction of both fractional numbers with denominator 105
For the 1st fraction, since 15 × 7 = 105,
90/15 = 90 × 7/15 × 7 = 630/105
Likewise, for the 2nd fraction, since 21 × 5 = 105,
10/21 = 10 × 5/21 × 5 = 50/105
Add the two like fractions:
630/105 + 50/105 = 630 + 50/105 = 680/105
680/105 simplified gives 136/21
So, 90/15 + 10/21 = 136/21
In mixed form: 610/21

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