Add 72/30 and 90/20
1st number: 2 12/30, 2nd number: 4 10/20
72/30 + 90/20 is 69/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
72/30 = 72 × 2/30 × 2 = 144/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
90/20 = 90 × 3/20 × 3 = 270/60 - Add the two like fractions:
144/60 + 270/60 = 144 + 270/60 = 414/60 - 414/60 simplified gives 69/10
- So, 72/30 + 90/20 = 69/10
In mixed form: 69/10
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