Add 45/72 and 35/90
45/72 + 35/90 is 73/72.
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,
45/72 = 45 × 5/72 × 5 = 225/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
35/90 = 35 × 4/90 × 4 = 140/360 - Add the two like fractions:
225/360 + 140/360 = 225 + 140/360 = 365/360 - 365/360 simplified gives 73/72
- So, 45/72 + 35/90 = 73/72
In mixed form: 11/72
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