Add 90/98 and 18/70
90/98 + 18/70 is 288/245.
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,
90/98 = 90 × 5/98 × 5 = 450/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
18/70 = 18 × 7/70 × 7 = 126/490 - Add the two like fractions:
450/490 + 126/490 = 450 + 126/490 = 576/490 - 576/490 simplified gives 288/245
- So, 90/98 + 18/70 = 288/245
In mixed form: 143/245
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