Add 3/12 and 42/80
3/12 + 42/80 is 31/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 12 × 20 = 240,
3/12 = 3 × 20/12 × 20 = 60/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
42/80 = 42 × 3/80 × 3 = 126/240 - Add the two like fractions:
60/240 + 126/240 = 60 + 126/240 = 186/240 - 186/240 simplified gives 31/40
- So, 3/12 + 42/80 = 31/40
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