Add 28/30 and 18/80
28/30 + 18/80 is 139/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 30 × 8 = 240,
28/30 = 28 × 8/30 × 8 = 224/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
18/80 = 18 × 3/80 × 3 = 54/240 - Add the two like fractions:
224/240 + 54/240 = 224 + 54/240 = 278/240 - 278/240 simplified gives 139/120
- So, 28/30 + 18/80 = 139/120
In mixed form: 119/120
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