Add 16/18 and 28/40
16/18 + 28/40 is 143/90.
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,
16/18 = 16 × 20/18 × 20 = 320/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
28/40 = 28 × 9/40 × 9 = 252/360 - Add the two like fractions:
320/360 + 252/360 = 320 + 252/360 = 572/360 - 572/360 simplified gives 143/90
- So, 16/18 + 28/40 = 143/90
In mixed form: 153/90
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