Add 40/70 and 18/28
40/70 + 18/28 is 17/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
40/70 = 40 × 2/70 × 2 = 80/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
18/28 = 18 × 5/28 × 5 = 90/140 - Add the two like fractions:
80/140 + 90/140 = 80 + 90/140 = 170/140 - 170/140 simplified gives 17/14
- So, 40/70 + 18/28 = 17/14
In mixed form: 13/14
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