Add 42/10 and 72/49
1st number: 4 2/10, 2nd number: 1 23/49
42/10 + 72/49 is 1389/245.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 49 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 10 × 49 = 490,
42/10 = 42 × 49/10 × 49 = 2058/490 - Likewise, for the 2nd fraction, since 49 × 10 = 490,
72/49 = 72 × 10/49 × 10 = 720/490 - Add the two like fractions:
2058/490 + 720/490 = 2058 + 720/490 = 2778/490 - 2778/490 simplified gives 1389/245
- So, 42/10 + 72/49 = 1389/245
In mixed form: 5164/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10+72/49 42/20+72/49 42/10+72/98 42/30+72/49 42/50+72/49 42/70+72/49