Add 54/21 and 70/16
1st number: 2 12/21, 2nd number: 4 6/16
54/21 + 70/16 is 389/56.
Steps for adding fractions
- 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,
54/21 = 54 × 16/21 × 16 = 864/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
70/16 = 70 × 21/16 × 21 = 1470/336 - Add the two like fractions:
864/336 + 1470/336 = 864 + 1470/336 = 2334/336 - 2334/336 simplified gives 389/56
- So, 54/21 + 70/16 = 389/56
In mixed form: 653/56
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