Add 49/40 and 12/90
1st number: 1 9/40, 2nd number: 12/90
49/40 + 12/90 is 163/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
49/40 = 49 × 9/40 × 9 = 441/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
12/90 = 12 × 4/90 × 4 = 48/360 - Add the two like fractions:
441/360 + 48/360 = 441 + 48/360 = 489/360 - 489/360 simplified gives 163/120
- So, 49/40 + 12/90 = 163/120
In mixed form: 143/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/40+12/90 49/40+24/90 49/80+12/90 49/40+36/90 49/40+60/90 49/40+84/90