Add 72/42 and 90/16
1st number: 1 30/42, 2nd number: 5 10/16
72/42 + 90/16 is 411/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 42 × 8 = 336,
72/42 = 72 × 8/42 × 8 = 576/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
90/16 = 90 × 21/16 × 21 = 1890/336 - Add the two like fractions:
576/336 + 1890/336 = 576 + 1890/336 = 2466/336 - 2466/336 simplified gives 411/56
- So, 72/42 + 90/16 = 411/56
In mixed form: 719/56
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