Add 30/80 and 54/12
1st number: 30/80, 2nd number: 4 6/12
30/80 + 54/12 is 39/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 12 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
30/80 = 30 × 3/80 × 3 = 90/240 - Likewise, for the 2nd fraction, since 12 × 20 = 240,
54/12 = 54 × 20/12 × 20 = 1080/240 - Add the two like fractions:
90/240 + 1080/240 = 90 + 1080/240 = 1170/240 - 1170/240 simplified gives 39/8
- So, 30/80 + 54/12 = 39/8
In mixed form: 47/8
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