Answers

Add 81/75 and 21/35

1^st number: 1 6/75, 2^nd number: 21/35

81/75 + 21/35 is 42/25.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 35 is 525
   
   Next, find the equivalent fraction of both fractional numbers with denominator 525
2. For the 1st fraction, since 75 × 7 = 525,
   81/75 = 81 × 7/75 × 7 = 567/525
3. Likewise, for the 2nd fraction, since 35 × 15 = 525,
   21/35 = 21 × 15/35 × 15 = 315/525
4. Add the two like fractions:
   567/525 + 315/525 = 567 + 315/525 = 882/525
5. 882/525 simplified gives 42/25
6. So, 81/75 + 21/35 = 42/25
   In mixed form: 117/25

MathStep (Works offline)

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

Related: ⁸¹/₇₅+⁴²/₃₅ ⁸¹/₇₅+²¹/₇₀ ⁸¹/₇₅+⁶³/₃₅

Add Fractions Calculator