Add 42/45 and 5/72
42/45 + 5/72 is 361/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
42/45 = 42 × 8/45 × 8 = 336/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
5/72 = 5 × 5/72 × 5 = 25/360 - Add the two like fractions:
336/360 + 25/360 = 336 + 25/360 = 361/360 - So, 42/45 + 5/72 = 361/360
In mixed form: 11/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/45+5/72 42/45+10/72 42/90+5/72 42/45+15/72 42/45+25/72 42/45+35/72