Add 42/80 and 45/50
42/80 + 45/50 is 57/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 50 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 80 × 5 = 400,
42/80 = 42 × 5/80 × 5 = 210/400 - Likewise, for the 2nd fraction, since 50 × 8 = 400,
45/50 = 45 × 8/50 × 8 = 360/400 - Add the two like fractions:
210/400 + 360/400 = 210 + 360/400 = 570/400 - 570/400 simplified gives 57/40
- So, 42/80 + 45/50 = 57/40
In mixed form: 117/40
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