Add 9/30 and 40/72
9/30 + 40/72 is 77/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 30 × 12 = 360,
9/30 = 9 × 12/30 × 12 = 108/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
40/72 = 40 × 5/72 × 5 = 200/360 - Add the two like fractions:
108/360 + 200/360 = 108 + 200/360 = 308/360 - 308/360 simplified gives 77/90
- So, 9/30 + 40/72 = 77/90
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