Add 28/30 and 18/40
28/30 + 18/40 is 83/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
28/30 = 28 × 4/30 × 4 = 112/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
18/40 = 18 × 3/40 × 3 = 54/120 - Add the two like fractions:
112/120 + 54/120 = 112 + 54/120 = 166/120 - 166/120 simplified gives 83/60
- So, 28/30 + 18/40 = 83/60
In mixed form: 123/60
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