Add 28/40 and 3/18
28/40 + 3/18 is 13/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 18 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
28/40 = 28 × 9/40 × 9 = 252/360 - Likewise, for the 2nd fraction, since 18 × 20 = 360,
3/18 = 3 × 20/18 × 20 = 60/360 - Add the two like fractions:
252/360 + 60/360 = 252 + 60/360 = 312/360 - 312/360 simplified gives 13/15
- So, 28/40 + 3/18 = 13/15
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