Add 7/18 and 28/40
7/18 + 28/40 is 49/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 18 × 20 = 360,
7/18 = 7 × 20/18 × 20 = 140/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
28/40 = 28 × 9/40 × 9 = 252/360 - Add the two like fractions:
140/360 + 252/360 = 140 + 252/360 = 392/360 - 392/360 simplified gives 49/45
- So, 7/18 + 28/40 = 49/45
In mixed form: 14/45
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