Add 2/42 and 49/40, Solve 2/42 + 1 9/40 as a fraction

Add 2/42 and 49/40

1^st number: 2/42, 2^nd number: 1 9/40

2/42 + 49/40 is 1069/840.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 40 is 840

Next, find the equivalent fraction of both fractional numbers with denominator 840
For the 1st fraction, since 42 × 20 = 840,
2/42 = 2 × 20/42 × 20 = 40/840
Likewise, for the 2nd fraction, since 40 × 21 = 840,
49/40 = 49 × 21/40 × 21 = 1029/840
Add the two like fractions:
40/840 + 1029/840 = 40 + 1029/840 = 1069/840
So, 2/42 + 49/40 = 1069/840
In mixed form: 1229/840

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad