Add 12/45 and 12/40
12/45 + 12/40 is 17/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
12/45 = 12 × 8/45 × 8 = 96/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
12/40 = 12 × 9/40 × 9 = 108/360 - Add the two like fractions:
96/360 + 108/360 = 96 + 108/360 = 204/360 - 204/360 simplified gives 17/30
- So, 12/45 + 12/40 = 17/30
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