Add 45/15 and 70/40
1st number: 3 0/15, 2nd number: 1 30/40
45/15 + 70/40 is 19/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
45/15 = 45 × 8/15 × 8 = 360/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
70/40 = 70 × 3/40 × 3 = 210/120 - Add the two like fractions:
360/120 + 210/120 = 360 + 210/120 = 570/120 - 570/120 simplified gives 19/4
- So, 45/15 + 70/40 = 19/4
In mixed form: 43/4
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