Add 25/70 and 90/20
1st number: 25/70, 2nd number: 4 10/20
25/70 + 90/20 is 34/7.
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,
25/70 = 25 × 2/70 × 2 = 50/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
90/20 = 90 × 7/20 × 7 = 630/140 - Add the two like fractions:
50/140 + 630/140 = 50 + 630/140 = 680/140 - 680/140 simplified gives 34/7
- So, 25/70 + 90/20 = 34/7
In mixed form: 46/7
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