Add 5/40 and 90/98
5/40 + 90/98 is 409/392.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 98 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 40 × 49 = 1960,
5/40 = 5 × 49/40 × 49 = 245/1960 - Likewise, for the 2nd fraction, since 98 × 20 = 1960,
90/98 = 90 × 20/98 × 20 = 1800/1960 - Add the two like fractions:
245/1960 + 1800/1960 = 245 + 1800/1960 = 2045/1960 - 2045/1960 simplified gives 409/392
- So, 5/40 + 90/98 = 409/392
In mixed form: 117/392
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