Add 30/18 and 72/80
1st number: 1 12/18, 2nd number: 72/80
30/18 + 72/80 is 77/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 18 × 40 = 720,
30/18 = 30 × 40/18 × 40 = 1200/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
72/80 = 72 × 9/80 × 9 = 648/720 - Add the two like fractions:
1200/720 + 648/720 = 1200 + 648/720 = 1848/720 - 1848/720 simplified gives 77/30
- So, 30/18 + 72/80 = 77/30
In mixed form: 217/30
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