Add 70/16 and 21/54, Solve 4 6/16 + 21/54 as a fraction

Add 70/16 and 21/54

1^st number: 4 6/16, 2^nd number: 21/54

70/16 + 21/54 is 343/72.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 54 is 432

Next, find the equivalent fraction of both fractional numbers with denominator 432
For the 1st fraction, since 16 × 27 = 432,
70/16 = 70 × 27/16 × 27 = 1890/432
Likewise, for the 2nd fraction, since 54 × 8 = 432,
21/54 = 21 × 8/54 × 8 = 168/432
Add the two like fractions:
1890/432 + 168/432 = 1890 + 168/432 = 2058/432
2058/432 simplified gives 343/72
So, 70/16 + 21/54 = 343/72
In mixed form: 455/72

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