Add 40/70 and 90/18
1st number: 40/70, 2nd number: 5 0/18
40/70 + 90/18 is 39/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 18 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
40/70 = 40 × 9/70 × 9 = 360/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
90/18 = 90 × 35/18 × 35 = 3150/630 - Add the two like fractions:
360/630 + 3150/630 = 360 + 3150/630 = 3510/630 - 3510/630 simplified gives 39/7
- So, 40/70 + 90/18 = 39/7
In mixed form: 54/7
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