Add 7/90 and 90/72
1st number: 7/90, 2nd number: 1 18/72
7/90 + 90/72 is 239/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
7/90 = 7 × 4/90 × 4 = 28/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
90/72 = 90 × 5/72 × 5 = 450/360 - Add the two like fractions:
28/360 + 450/360 = 28 + 450/360 = 478/360 - 478/360 simplified gives 239/180
- So, 7/90 + 90/72 = 239/180
In mixed form: 159/180
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