Add 80/40 and 54/45
1st number: 2 0/40, 2nd number: 1 9/45
80/40 + 54/45 is 16/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
80/40 = 80 × 9/40 × 9 = 720/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
54/45 = 54 × 8/45 × 8 = 432/360 - Add the two like fractions:
720/360 + 432/360 = 720 + 432/360 = 1152/360 - 1152/360 simplified gives 16/5
- So, 80/40 + 54/45 = 16/5
In mixed form: 31/5
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