Add 30/90 and 81/40
1st number: 30/90, 2nd number: 2 1/40
30/90 + 81/40 is 283/120.
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,
81/40 = 81 × 9/40 × 9 = 729/360 - Add the two like fractions:
120/360 + 729/360 = 120 + 729/360 = 849/360 - 849/360 simplified gives 283/120
- So, 30/90 + 81/40 = 283/120
In mixed form: 243/120
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