Add 30/90 and 90/40
1st number: 30/90, 2nd number: 2 10/40
30/90 + 90/40 is 31/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
30/90 = 30 × 4/90 × 4 = 120/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
90/40 = 90 × 9/40 × 9 = 810/360 - Add the two like fractions:
120/360 + 810/360 = 120 + 810/360 = 930/360 - 930/360 simplified gives 31/12
- So, 30/90 + 90/40 = 31/12
In mixed form: 27/12
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