Add 90/21 and 25/16, Solve 4 6/21 + 1 9/16 as a fraction

Add 90/21 and 25/16

1^st number: 4 6/21, 2^nd number: 1 9/16

90/21 + 25/16 is 655/112.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336

Next, find the equivalent fraction of both fractional numbers with denominator 336
For the 1st fraction, since 21 × 16 = 336,
90/21 = 90 × 16/21 × 16 = 1440/336
Likewise, for the 2nd fraction, since 16 × 21 = 336,
25/16 = 25 × 21/16 × 21 = 525/336
Add the two like fractions:
1440/336 + 525/336 = 1440 + 525/336 = 1965/336
1965/336 simplified gives 655/112
So, 90/21 + 25/16 = 655/112
In mixed form: 595/112

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