Add 72/16 and 90/84
1st number: 4 8/16, 2nd number: 1 6/84
72/16 + 90/84 is 39/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 84 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
72/16 = 72 × 21/16 × 21 = 1512/336 - Likewise, for the 2nd fraction, since 84 × 4 = 336,
90/84 = 90 × 4/84 × 4 = 360/336 - Add the two like fractions:
1512/336 + 360/336 = 1512 + 360/336 = 1872/336 - 1872/336 simplified gives 39/7
- So, 72/16 + 90/84 = 39/7
In mixed form: 54/7
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