Add 90/70 and 14/20
1st number: 1 20/70, 2nd number: 14/20
90/70 + 14/20 is 139/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
90/70 = 90 × 2/70 × 2 = 180/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
14/20 = 14 × 7/20 × 7 = 98/140 - Add the two like fractions:
180/140 + 98/140 = 180 + 98/140 = 278/140 - 278/140 simplified gives 139/70
- So, 90/70 + 14/20 = 139/70
In mixed form: 169/70
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