Add 20/42 and 90/98
20/42 + 90/98 is 205/147.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 98 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 42 × 7 = 294,
20/42 = 20 × 7/42 × 7 = 140/294 - Likewise, for the 2nd fraction, since 98 × 3 = 294,
90/98 = 90 × 3/98 × 3 = 270/294 - Add the two like fractions:
140/294 + 270/294 = 140 + 270/294 = 410/294 - 410/294 simplified gives 205/147
- So, 20/42 + 90/98 = 205/147
In mixed form: 158/147
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