Add 12/72 and 3/40
12/72 + 3/40 is 29/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
12/72 = 12 × 5/72 × 5 = 60/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
3/40 = 3 × 9/40 × 9 = 27/360 - Add the two like fractions:
60/360 + 27/360 = 60 + 27/360 = 87/360 - 87/360 simplified gives 29/120
- So, 12/72 + 3/40 = 29/120
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