Add 7/72 and 4/90
7/72 + 4/90 is 17/120.
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,
7/72 = 7 × 5/72 × 5 = 35/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
4/90 = 4 × 4/90 × 4 = 16/360 - Add the two like fractions:
35/360 + 16/360 = 35 + 16/360 = 51/360 - 51/360 simplified gives 17/120
- So, 7/72 + 4/90 = 17/120
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