Add 42/10 and 12/27
1st number: 4 2/10, 2nd number: 12/27
42/10 + 12/27 is 209/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 10 × 27 = 270,
42/10 = 42 × 27/10 × 27 = 1134/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
12/27 = 12 × 10/27 × 10 = 120/270 - Add the two like fractions:
1134/270 + 120/270 = 1134 + 120/270 = 1254/270 - 1254/270 simplified gives 209/45
- So, 42/10 + 12/27 = 209/45
In mixed form: 429/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10+12/27 42/10+24/27 42/20+12/27 42/10+12/54 42/10+36/27 42/30+12/27 42/10+12/81 42/10+60/27 42/50+12/27 42/10+84/27 42/70+12/27