Add 9/72 and 36/90
9/72 + 36/90 is 21/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
9/72 = 9 × 5/72 × 5 = 45/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
36/90 = 36 × 4/90 × 4 = 144/360 - Add the two like fractions:
45/360 + 144/360 = 45 + 144/360 = 189/360 - 189/360 simplified gives 21/40
- So, 9/72 + 36/90 = 21/40
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