Add 90/28 and 72/42
1st number: 3 6/28, 2nd number: 1 30/42
90/28 + 72/42 is 69/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
90/28 = 90 × 3/28 × 3 = 270/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
72/42 = 72 × 2/42 × 2 = 144/84 - Add the two like fractions:
270/84 + 144/84 = 270 + 144/84 = 414/84 - 414/84 simplified gives 69/14
- So, 90/28 + 72/42 = 69/14
In mixed form: 413/14
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