Add 90/70 and 40/18
1st number: 1 20/70, 2nd number: 2 4/18
90/70 + 40/18 is 221/63.
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,
90/70 = 90 × 9/70 × 9 = 810/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
40/18 = 40 × 35/18 × 35 = 1400/630 - Add the two like fractions:
810/630 + 1400/630 = 810 + 1400/630 = 2210/630 - 2210/630 simplified gives 221/63
- So, 90/70 + 40/18 = 221/63
In mixed form: 332/63
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