Add 90/40 and 70/90
1st number: 2 10/40, 2nd number: 70/90
90/40 + 70/90 is 109/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
90/40 = 90 × 9/40 × 9 = 810/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
70/90 = 70 × 4/90 × 4 = 280/360 - Add the two like fractions:
810/360 + 280/360 = 810 + 280/360 = 1090/360 - 1090/360 simplified gives 109/36
- So, 90/40 + 70/90 = 109/36
In mixed form: 31/36
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