Add 6/40 and 72/90
6/40 + 72/90 is 19/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
6/40 = 6 × 9/40 × 9 = 54/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
72/90 = 72 × 4/90 × 4 = 288/360 - Add the two like fractions:
54/360 + 288/360 = 54 + 288/360 = 342/360 - 342/360 simplified gives 19/20
- So, 6/40 + 72/90 = 19/20
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