Add 90/20 and 18/35
1st number: 4 10/20, 2nd number: 18/35
90/20 + 18/35 is 351/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 35 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
90/20 = 90 × 7/20 × 7 = 630/140 - Likewise, for the 2nd fraction, since 35 × 4 = 140,
18/35 = 18 × 4/35 × 4 = 72/140 - Add the two like fractions:
630/140 + 72/140 = 630 + 72/140 = 702/140 - 702/140 simplified gives 351/70
- So, 90/20 + 18/35 = 351/70
In mixed form: 51/70
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