Add 98/90 and 80/40
1st number: 1 8/90, 2nd number: 2 0/40
98/90 + 80/40 is 139/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
98/90 = 98 × 4/90 × 4 = 392/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
80/40 = 80 × 9/40 × 9 = 720/360 - Add the two like fractions:
392/360 + 720/360 = 392 + 720/360 = 1112/360 - 1112/360 simplified gives 139/45
- So, 98/90 + 80/40 = 139/45
In mixed form: 34/45
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