Add 18/98 and 90/70
1st number: 18/98, 2nd number: 1 20/70
18/98 + 90/70 is 72/49.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 98 × 5 = 490,
18/98 = 18 × 5/98 × 5 = 90/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
90/70 = 90 × 7/70 × 7 = 630/490 - Add the two like fractions:
90/490 + 630/490 = 90 + 630/490 = 720/490 - 720/490 simplified gives 72/49
- So, 18/98 + 90/70 = 72/49
In mixed form: 123/49
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