Add 72/9 and 90/42
1st number: 8 0/9, 2nd number: 2 6/42
72/9 + 90/42 is 71/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 9 × 14 = 126,
72/9 = 72 × 14/9 × 14 = 1008/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
90/42 = 90 × 3/42 × 3 = 270/126 - Add the two like fractions:
1008/126 + 270/126 = 1008 + 270/126 = 1278/126 - 1278/126 simplified gives 71/7
- So, 72/9 + 90/42 = 71/7
In mixed form: 101/7
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