Add 90/70 and 1/20
1st number: 1 20/70, 2nd number: 1/20
90/70 + 1/20 is 187/140.
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,
1/20 = 1 × 7/20 × 7 = 7/140 - Add the two like fractions:
180/140 + 7/140 = 180 + 7/140 = 187/140 - So, 90/70 + 1/20 = 187/140
In mixed form: 147/140
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