Add 18/45 and 90/16
1st number: 18/45, 2nd number: 5 10/16
18/45 + 90/16 is 241/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 16 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
18/45 = 18 × 16/45 × 16 = 288/720 - Likewise, for the 2nd fraction, since 16 × 45 = 720,
90/16 = 90 × 45/16 × 45 = 4050/720 - Add the two like fractions:
288/720 + 4050/720 = 288 + 4050/720 = 4338/720 - 4338/720 simplified gives 241/40
- So, 18/45 + 90/16 = 241/40
In mixed form: 61/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/45+90/16 18/90+90/16 18/45+90/32 54/45+90/16 18/45+90/48 90/45+90/16 18/45+90/80