Add 18/8 and 72/90
1st number: 2 2/8, 2nd number: 72/90
18/8 + 72/90 is 61/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
18/8 = 18 × 45/8 × 45 = 810/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
72/90 = 72 × 4/90 × 4 = 288/360 - Add the two like fractions:
810/360 + 288/360 = 810 + 288/360 = 1098/360 - 1098/360 simplified gives 61/20
- So, 18/8 + 72/90 = 61/20
In mixed form: 31/20
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